About screen exit

i'm new to abap enhancements...can any body say about the screen exit in detailed with screen shots....plzzzzz...
surely rewarded..
thankz in advance,,,,,

Pl check out in the forum there is plenty of stuff on screen exits.
Thanks,
Srinivas

Similar Messages

  • Active about screen exit MM06E005

    hello,everybody.
    i want to add some customer field in me21n,so i choose 0101 subscreen to implent it.but the other screen in this exit,i do not want to do anything on them,how can i do?
    i tried to delete other implent from smod in MM06E005,but i don't think this is a good idea,so is there any other ways to achieve it?

    If you use the enhancement, you must create and generate the following dynpros (even if the dynpros are not going to be used):
    u2022     SAPLXM06 0101 Subscreen header purchase order
    u2022     SAPLXM06 0201 Subscreen header outline agreement
    u2022     SAPLXM06 0301 Subscreen header RFQ
    u2022     SAPLXM06 0111 Subscreen item purchase order
    u2022     SAPLXM06 0211 Subscreen item outline agreement
    u2022     SAPLXM06 0311 Subscreen item RFQ
    You must identify all dynpros as subscreens. It is not necessary that they contain fields, but it is essential that they exist in order that no program abend occurs.

  • Documentation about Screen, Menu and Field Exits

    Hi all!!
    I need some documentation about Screen, Menu and Field Exits.
    I´m very interested specially on steps by steps.
    My mail is [email protected]
    Helpful posts will be rewarded.
    Thanks in advance and regards,
    Manuel.

    <b>Types of Exits </b>
    There are several different types of user exits. Each of these exits acts as hooks where you can attach or "hang" your own add-ons.
    <b>Menu Exits</b>
    Menu exits add items to the pulldown menus in standard SAP applications. You can use these menu items to call up your own screens or to trigger entire add-on applications.
    SAP creates menu exits by defining special menu items in the Menu Painter. These special entries have function codes that begin with "+" (a plus sign). You specify the menu item’s text when activating the item in an add-on project.
    <b>Screen Exits</b>
    Screen exits add fields to screens in R/3 applications. SAP creates screen exits by placing special subscreen areas on a standard R/3 screen and calling a customer subscreen from the standard screen’s flow logic.
    <b>Function Module Exits </b>
    Function module exits add functions to R/3 applications. Function module exits play a role in both menu and screen exits. 
    When you add a new menu item to a standard pull down menu, you use a function module exit to define the actions that should take place once your menu is activated. 
    Function module exits also control the data flow between standard programs and screen exit fields. SAP application developers create function module exits by writing calls to customer functions into the source code of standard R/3 programs. 
    These calls have the following syntax: 
    CALL CUSTOMER-FUNCTION ‘001’.
    Field Exits
    Field exits allow you to create your own programming logic for any data element in the Dictionary. You can use this logic to carry out checks, conversions, or business-related processing for any screen field.  Example: The data element BBBNR identifies a company’s international location number. You might want to set up your R/3 System so that all international location numbers are larger than 100. 
    The field exit concept lets you create a special function module that contains this logic. 
    You assign the special function module to the data element BBBNR. You then assign the module to any programs and screens in which users can add new international location numbers. When you activate your field exit, the system automatically triggers your special routine whenever a user enters a company location number. 
    In 4.6c, you can use "RSMODPRF" program to create field exits.
    An example of a user exits :-
    MODULE user_exit_0001 INPUT 
        CASE okcode.
            WHEN 'BACK OR EXIT'.
                CASE sy-dynnr.
                        WHEN '100'.
                             SET SCREEN 0.
                             LEAVE SCREEN.
                        WHEN '200'.
    **** Note that you can write any code that satisfy your needs.                                                     ****
    **** But in this case, this was wrote as a sample code for reference sake.                                    ****
    **** And you can test it.                                                                                ****
                             SET SCREEN 100.
                             LEAVE SCREEN.
                 ENDCASE.
          ENDCASE.
    reward  points if it is usefull..
    Girish

  • Screen - exits - step by step simple examples

    hi ,
    i am new to user exits.
    pls help me by giving step by step example for creating a subscreen with 2 fields , and incorporate with some standard sap transactions.
    there are many who discussed the same topic in the forum ,but i find confusing.
    *so please don't give me the links, take standard transaction and provide me step by step .
    Thank you.
    regards
    Sree

    hi,
    SAP provides standard transactions to enter data into database. But a client may want to maintain some additional information in SAP other than what is provided.
    To make provisions for this, additional screens have to be provided and additional fields must be added into appropriate database table.
    To pave way for this, SAP has provided the option for screen exits. Usually, SAP provides the following:
    An append structure in the database table with the new fields.
    A subscreen area into the standard screen u2013 where the programmer can attach his subscreen of his own program with the new fields.
    A function group under which the new subscreen has to be created with the new fields.
    Function exits to synchronize the PBO and PAI of the standard SAP program with the PBO and PAI of the subscreen u2013 so that data can flow back and forth between the standard SAP program and the program written by the developer for the subscreen. These function modules also exist in the same function group under which the subscreen will have to be developed.
    Finally, a linkage has to be done between the subscreen area of standard SAP screen with the custom subscreen constructed by the developer.
    Typically, SAP provides an enhancement in which the developer can create an append structure, use the function exits to synchronize the PBO and PAI of the standard SAP program and the custom subscreen program, and make the necessary linking( as mentioned above in step 4. But, again, this is not a hard and fast rule. Linking in some case, is also done by configurations.) SAP also usually provides the name of the function group under which the subscreen has to be developed.
    Necessary guidance about implementing a screen exit development is usually available in the Documentation section of the enhancement ( can be availed by transaction SMOD).
    Pre-Requisites
    The developer to work on screen exit should have essential knowledge on the following:
    DDIC concepts, including the knowledge of append structure.
    Concept of SAP Enhancements and implementing them using Projects.
    Concept of function exits.
    Knowledge on Module Pool u2013 including subscreens, Tabstrip controls etc.
    Steps
    Guidelines
    So, a developer can follow the guidelines mentioned below to implement a screen exit to a standard SAP transaction, as and when required:
    Find out the Required Enhancements
    Go to SMOD. Press F4 in the Enhancement field. In the next popup window, click pushbutton u2018SAP Applicationsu2019. A list will appear that contains information on all the enhancements, categorized under functional areas. Developer must search for the enhancements relevant to his functional area of interest u2013 for e.g., Purchasing, Asset Accounting, etc.
    Note down the enhancements. Then, come to the initial screen of SMOD and view the documentation of each enhancement to find out which one is required for your development.
    Utilize the Enhancement in a Project
    After you have found one, do as directed in the documentation. Generally, the steps are as follows:
    Create a project using CMOD including your enhancement.
    Create the append structure with new fields.
    Go to the desired function group and create a subscreen with the new fields. Write PBO and PAI for the subscreen, if required.
    Use the function exits in the enhancement to link the PBO and PAI of the subscreen with that of the main SAP program supporting the SAP transaction.
    Maintain necessary linkage between the subscreen area of standard SAP program with the custom subscreen developed along with the custom program name. This can be done in the project (developed by CMOD including the enhancement) or outside as a part of configuration.
    Activate the project.
    Test to ensure that required functionality are met.
    Case Study 1
    Add three new custom fields for Asset master and maintain information for them
    Requirement
    Three fields in the legacy system have to be maintained in Asset master. These fields are:
    Original Asset number u2013 20 characters
    Location 2 u2013 15 Characters.
    Model no u2013 20 characters
    Location 2 should start with u2018Lu2019.
    Pre-Analysis
    Finding out the Enhancement
    As described above, the enhancement is determined. It was found, that enhancement AIST0002 will serve the purpose. It contains the following components (can be viewed by transaction SMOD):
    Exit Type Description EXIT_SAPL1022_001 Function Exit Check of User-Defined Fields when Using Create and Change BAPI EXIT_SAPLAIST_002 Function Exit Transfer Data for User Subscreens in PBO. EXIT_SAPLAIST_003 Function Exit Transfer of User-Defined Fields to SAP Master Data Transactions CI_ANLU Customizing Include Include structure to add new fields
    Studying the Function Exits
    The function module level documentation for the function exits are then viewed from transaction SE37. The documentation clearly laid out for the purpose for their use:
    EXIT_SAPLAIST_002
    Function module Level Documentation
    This function module is called by asset master data maintenance at the start of the dialog. (When changing, it is called after reading of the data from the database; when creating it is called after the transfer of the default values from the asset class and reference asset.) The purpose of the function module is to enable this function group to recognize the master data. For interpreting or controlling master data fields that are important for user fields, it is possible to transfer to global variables at this point, so that they can be recognized when the user subscreens are processed.
    Import Parameters
    Understanding
    This function module is called at the PBO to pass the information retrieved from the database to pass them to the custom subscreen and its underlying program. Import parameter : I_ANLU will be populated with the values for user-defined fields which will be passed to the subscreen program. So, there must be some sort of variable assignment from I_ANLU.
    EXIT_SAPLAIST_003
    Function module Documentation: This function module is called by SAP asset master data maintenance after the screens are processed, but before saving. The purpose of the function module is to transfer fields entered on user sub-screens of SAP asset data maintenance to the database for updating. The export parameter for this function module is:
    Understanding
    This function module will be used to transfer the user entered data in the subscreen fields to the main SAP program, which will then be saved into the database.
    Studying the Documentation of the Enhancement
    The enhancement documentation (as is viewed from the initial screen of SMOD] also supports the idea. Moreover, it informs that we need to develop a subscreen under function group XAIS. This is the function group under which the two function exit modules also exist. So, if the custom subscreen refers to the global data of the function group XAIS, then those values will also be available to these function exits as well.
    Going to SE80 and viewing the function group XAIS helps us to inform that there are three DDIC tables declared for it:
    Deciding the Final course of Action
    After making all the investigations, the final course of action was determined.
    SrlNo Step Justification
    A project has to be created using transaction CMOD where the enhancement AIST0002 will be included.
    Customizing include CI_ANLU has to be created with the custom fields demanded When CI_ANLU will be developed, the custom fields will get appended to the database table ANLU. Also, these fields will be used to create screen fields in the new subscreen.
    A custom subscreen, say, 9000 will be developed under function group XAIS. The screen group for the screen will be u2018CUSTu2019 (or any name). The three custom fields added to table ANLU (by creating CI_ANLU) will be used to create new fields in the screen.
    In the PAI of the subscreen, validation for Location to start with u2018Lu2019 will be added. The subscreen with three new fields has to be developed so that it can be attached to a subscreen area of the asset master screens.
    In the custom include of the function exit module u2018EXIT_SAPLAIST_002u2019, the following code will be written:-
    ANLU = I_ANLU. I_ANLU is the import parameter of this FM. The value is assigned to the global variable ANLU, referring which the three new subscreen fields are developed. So, data retrieved from database table ANLU will be passed to this FM as I_ANLU by the standard SAP main program. The value will be taken and passed to the global variable of the function group XAIS, so that the three custom fields (referring to ANLU of XAIS) get populated.
    In the custom include of the function exit module u2018EXIT_SAPLAIST_003u2019, the following code will be written:-
    E_ANLU = ANLU. The changed values in the subscreen fields exist in global variable ANLU for the function group XAIS. This function exit module will pass the data back to the SAP main program as E_ANLU.
    Proper linkage/configuration has to be done so that the new subscreens get linked to the appropriate subscreen area of the Asset master screen. This has to be done u2013 otherwise, the new custom subscreen will not be displayed in the Asset master screens.
    Development
    Creating a Project to include the enhancement
    Go to transaction CMOD and create a project.
    Enter a description for the project. Then, click on the pushbutton u2018Enhancement Assignmentsu2019 in the Application Toolbar.
    Enter the name of the enhancement and Save.
    Go to u2018Componentsu2019.
    Creating Custom Include for ANLU
    The screen shown below will appear, showing all the enhancement components under the assignment AIST0002. Double-click on the name of the Include Structure to create it.
    Create the include structure with three new fields, as required. Then, save and activate it.
    Develop the subscreen and the program
    Go to transaction SE80. For the function group XAIS, create a new subscreen 9000.
    Create it as subscreen.
    Then, go to the Layout of the screen and create three new fields from Database table ANLU.
    Drag the fields in the screen body and place them.
    Then, save and activate the screen and come back to screen flow editor.
    Create the PAI module to add validation for field u201CLocation 2u201D, as required .
    Activate the whole function group and come out.
    Write code in the Function Exits to synchronize the programs
    Now, code has to be written in the function modules EXIT_SAPLAIST_002 and EXIT_SAPLAIST_003 so that data flows to and fro between the main SAP program and custom subscreen program. For that, go back to transaction CMOD and change the function exits.
    Write code in the function module EXIT_SAPLAIST_002 called once at the beginning of the transaction:
    Write code in EXIT_SAPLAIST_003 to pass the data from the subscreen to SAP main program.
    Then, activate everything u2013 the whole project and come out.
    Complete the configuration to link the subscreen
    The development portion is complete. Now, linking of the subscreen has to be done with the subscreen area of the main program. In most of the cases, this linking can be done in the enhancement itself. But, here, requirement is a bit different. It is done by configuration using SPRO.
    Assets are created under Asset class. And for each asset class, there is a layout assigned to it. For a layout, there are multiple tab pages assigned to it. And, for each tab page, there are multiple screen groups/field groups assigned.
    Here, the requirement is to create these three custom fields in the tab page u2018Generalu2019 of asset master screen ( AS01/AS02/AS03/AS91).
    Determine the Layout
    To achieve this, first of all, we need to find out which layout is assigned to asset class 1000.For that, go to transaction AOLK( information has to be obtained from functional consultant).Select the Asset Class u20181000u2019 and click on folder u2018General Assignment of Layoutu2019.
    Here, for Asset class 1000, for all the user groups, tab layout SAP is assigned. Since layout u2018SAPu2019 cannot be changed, it has to be copied and manipulated to include our screen group. Later, the new layout has to be assigned over here.
    Create new tab layout
    Go to transaction AOLA. Copy the tab layout u2018SAPu2019 to create another layout, say, YSUB.
    System will copy all the settings and will inform you about that.
    Select your newly created layout and double-click on the folder u2018Tab page titlesu2019.
    You want to put your custom fields in the tab page u201CGeneralu201D. So, select this tab page entry and double-click on the folder "Position of Groups".
    Here, all the field groups currently residing in the tab-page u201CGeneralu201D are shown. Add an entry for your newly created fields.
    Select the group box from the list. An entry will come with u201CUu201D padded with the custom subscreen prepared by you.
    Then, save and come out.
    Assign the new Layout to Asset Class
    Now, go to tcode AOLK and assign tab layout YSUB for asset class 1000.
    Save and come out.
    Test the Exit
    Everything is over. Now, go to transaction code AS01/02/03 or AS91 to deal with an asset of asset class 1000. You will see your new fields added to the screen. Add values to themu2026save. Then, enter into the tcodes again to see whether the values entered by you are being displayed or not.

  • Screen exits - Urgent.

    Hi,
    I am working on screen exits for VA01.
    Can someone tell me how to add table control in a sub screeen at item level in additional data B ?

    Hi
    How to implement screen exit for a SAP standard transaction HOT
    Introduction
    SAP provides standard transactions to enter data into database. But a client may want to maintain some additional information in SAP other than what is provided.
    To make provisions for this, additional screens have to be provided and additional fields must be added into appropriate database table.
    To pave way for this, SAP has provided the option for screen exits. Usually, SAP provides the following:
    An append structure in the database table with the new fields.
    A subscreen area into the standard screen – where the programmer can attach his subscreen of his own program with the new fields.
    A function group under which the new subscreen has to be created with the new fields.
    Function exits to synchronize the PBO and PAI of the standard SAP program with the PBO and PAI of the subscreen – so that data can flow back and forth between the standard SAP program and the program written by the developer for the subscreen. These function modules also exist in the same function group under which the subscreen will have to be developed.
    Finally, a linkage has to be done between the subscreen area of standard SAP screen with the custom subscreen constructed by the developer.
    Typically, SAP provides an enhancement in which the developer can create an append structure, use the function exits to synchronize the PBO and PAI of the standard SAP program and the custom subscreen program, and make the necessary linking( as mentioned above in step 4. But, again, this is not a hard and fast rule. Linking in some case, is also done by configurations.) SAP also usually provides the name of the function group under which the subscreen has to be developed.
    Necessary guidance about implementing a screen exit development is usually available in the Documentation section of the enhancement ( can be availed by transaction SMOD).
    Pre-Requisites
    The developer to work on screen exit should have essential knowledge on the following:
    DDIC concepts, including the knowledge of append structure.
    Concept of SAP Enhancements and implementing them using Projects.
    Concept of function exits.
    Knowledge on Module Pool – including subscreens, Tabstrip controls etc.
    Steps
    Guidelines
    So, a developer can follow the guidelines mentioned below to implement a screen exit to a standard SAP transaction, as and when required:
    Find out the Required Enhancements
    Go to SMOD. Press F4 in the Enhancement field. In the next popup window, click pushbutton ‘SAP Applications’. A list will appear that contains information on all the enhancements, categorized under functional areas. Developer must search for the enhancements relevant to his functional area of interest – for e.g., Purchasing, Asset Accounting, etc.
    Note down the enhancements. Then, come to the initial screen of SMOD and view the documentation of each enhancement to find out which one is required for your development.
    Utilize the Enhancement in a Project
    After you have found one, do as directed in the documentation. Generally, the steps are as follows:
    Create a project using CMOD including your enhancement.
    Create the append structure with new fields.
    Go to the desired function group and create a subscreen with the new fields. Write PBO and PAI for the subscreen, if required.
    Use the function exits in the enhancement to link the PBO and PAI of the subscreen with that of the main SAP program supporting the SAP transaction.
    Maintain necessary linkage between the subscreen area of standard SAP program with the custom subscreen developed along with the custom program name. This can be done in the project (developed by CMOD including the enhancement) or outside as a part of configuration.
    Activate the project.
    Test to ensure that required functionality are met.
    Case Study 1
    Add three new custom fields for Asset master and maintain information for them
    Requirement
    Three fields in the legacy system have to be maintained in Asset master. These fields are:
    Original Asset number – 20 characters
    Location 2 – 15 Characters.
    Model no – 20 characters
    Location 2 should start with ‘L’.
    Pre-Analysis
    Finding out the Enhancement
    As described above, the enhancement is determined. It was found, that enhancement AIST0002 will serve the purpose. It contains the following components (can be viewed by transaction SMOD):
    Exit Type Description EXIT_SAPL1022_001 Function Exit Check of User-Defined Fields when Using Create and Change BAPI EXIT_SAPLAIST_002 Function Exit Transfer Data for User Subscreens in PBO. EXIT_SAPLAIST_003 Function Exit Transfer of User-Defined Fields to SAP Master Data Transactions CI_ANLU Customizing Include Include structure to add new fields
    Studying the Function Exits
    The function module level documentation for the function exits are then viewed from transaction SE37. The documentation clearly laid out for the purpose for their use:
    EXIT_SAPLAIST_002
    Function module Level Documentation
    This function module is called by asset master data maintenance at the start of the dialog. (When changing, it is called after reading of the data from the database; when creating it is called after the transfer of the default values from the asset class and reference asset.) The purpose of the function module is to enable this function group to recognize the master data. For interpreting or controlling master data fields that are important for user fields, it is possible to transfer to global variables at this point, so that they can be recognized when the user subscreens are processed.
    Import Parameters
    Understanding
    This function module is called at the PBO to pass the information retrieved from the database to pass them to the custom subscreen and its underlying program. Import parameter : I_ANLU will be populated with the values for user-defined fields which will be passed to the subscreen program. So, there must be some sort of variable assignment from I_ANLU.
    EXIT_SAPLAIST_003
    Function module Documentation: This function module is called by SAP asset master data maintenance after the screens are processed, but before saving. The purpose of the function module is to transfer fields entered on user sub-screens of SAP asset data maintenance to the database for updating. The export parameter for this function module is:
    Understanding
    This function module will be used to transfer the user entered data in the subscreen fields to the main SAP program, which will then be saved into the database.
    Studying the Documentation of the Enhancement
    The enhancement documentation (as is viewed from the initial screen of SMOD] also supports the idea. Moreover, it informs that we need to develop a subscreen under function group XAIS. This is the function group under which the two function exit modules also exist. So, if the custom subscreen refers to the global data of the function group XAIS, then those values will also be available to these function exits as well.
    Going to SE80 and viewing the function group XAIS helps us to inform that there are three DDIC tables declared for it:
    Deciding the Final course of Action
    After making all the investigations, the final course of action was determined.
    SrlNo Step Justification
    A project has to be created using transaction CMOD where the enhancement AIST0002 will be included.
    Customizing include CI_ANLU has to be created with the custom fields demanded When CI_ANLU will be developed, the custom fields will get appended to the database table ANLU. Also, these fields will be used to create screen fields in the new subscreen.
    A custom subscreen, say, 9000 will be developed under function group XAIS. The screen group for the screen will be ‘CUST’ (or any name). The three custom fields added to table ANLU (by creating CI_ANLU) will be used to create new fields in the screen.
    In the PAI of the subscreen, validation for Location to start with ‘L’ will be added. The subscreen with three new fields has to be developed so that it can be attached to a subscreen area of the asset master screens.
    In the custom include of the function exit module ‘EXIT_SAPLAIST_002’, the following code will be written:-
    ANLU = I_ANLU. I_ANLU is the import parameter of this FM. The value is assigned to the global variable ANLU, referring which the three new subscreen fields are developed. So, data retrieved from database table ANLU will be passed to this FM as I_ANLU by the standard SAP main program. The value will be taken and passed to the global variable of the function group XAIS, so that the three custom fields (referring to ANLU of XAIS) get populated.
    In the custom include of the function exit module ‘EXIT_SAPLAIST_003’, the following code will be written:-
    E_ANLU = ANLU. The changed values in the subscreen fields exist in global variable ANLU for the function group XAIS. This function exit module will pass the data back to the SAP main program as E_ANLU.
    Proper linkage/configuration has to be done so that the new subscreens get linked to the appropriate subscreen area of the Asset master screen. This has to be done – otherwise, the new custom subscreen will not be displayed in the Asset master screens.
    Development
    Creating a Project to include the enhancement
    Go to transaction CMOD and create a project.
    Enter a description for the project. Then, click on the pushbutton ‘Enhancement Assignments’ in the Application Toolbar.
    Enter the name of the enhancement and Save.
    Go to ‘Components’.
    Creating Custom Include for ANLU
    The screen shown below will appear, showing all the enhancement components under the assignment AIST0002. Double-click on the name of the Include Structure to create it.
    Create the include structure with three new fields, as required. Then, save and activate it.
    Develop the subscreen and the program
    Go to transaction SE80. For the function group XAIS, create a new subscreen 9000.
    Create it as subscreen.
    Then, go to the Layout of the screen and create three new fields from Database table ANLU.
    Drag the fields in the screen body and place them.
    Then, save and activate the screen and come back to screen flow editor.
    Create the PAI module to add validation for field “Location 2”, as required .
    Activate the whole function group and come out.
    Write code in the Function Exits to synchronize the programs
    Now, code has to be written in the function modules EXIT_SAPLAIST_002 and EXIT_SAPLAIST_003 so that data flows to and fro between the main SAP program and custom subscreen program. For that, go back to transaction CMOD and change the function exits.
    Write code in the function module EXIT_SAPLAIST_002 called once at the beginning of the transaction:
    Write code in EXIT_SAPLAIST_003 to pass the data from the subscreen to SAP main program.
    Then, activate everything – the whole project and come out.
    Complete the configuration to link the subscreen
    The development portion is complete. Now, linking of the subscreen has to be done with the subscreen area of the main program. In most of the cases, this linking can be done in the enhancement itself. But, here, requirement is a bit different. It is done by configuration using SPRO.
    Assets are created under Asset class. And for each asset class, there is a layout assigned to it. For a layout, there are multiple tab pages assigned to it. And, for each tab page, there are multiple screen groups/field groups assigned.
    Here, the requirement is to create these three custom fields in the tab page ‘General’ of asset master screen ( AS01/AS02/AS03/AS91).
    Determine the Layout
    To achieve this, first of all, we need to find out which layout is assigned to asset class 1000.For that, go to transaction AOLK( information has to be obtained from functional consultant).Select the Asset Class ‘1000’ and click on folder ‘General Assignment of Layout’.
    Here, for Asset class 1000, for all the user groups, tab layout SAP is assigned. Since layout ‘SAP’ cannot be changed, it has to be copied and manipulated to include our screen group. Later, the new layout has to be assigned over here.
    Create new tab layout
    Go to transaction AOLA. Copy the tab layout ‘SAP’ to create another layout, say, YSUB.
    System will copy all the settings and will inform you about that.
    Select your newly created layout and double-click on the folder ‘Tab page titles’.
    You want to put your custom fields in the tab page “General”. So, select this tab page entry and double-click on the folder "Position of Groups".
    Here, all the field groups currently residing in the tab-page “General” are shown. Add an entry for your newly created fields.
    Select the group box from the list. An entry will come with “U” padded with the custom subscreen prepared by you.
    Then, save and come out.
    Assign the new Layout to Asset Class
    Now, go to tcode AOLK and assign tab layout YSUB for asset class 1000.
    Save and come out.
    Test the Exit
    Everything is over. Now, go to transaction code AS01/02/03 or AS91 to deal with an asset of asset class 1000. You will see your new fields added to the screen. Add values to them…save. Then, enter into the tcodes again to see whether the values entered by you are being displayed or not.
    Original Source: ittoolbox.com
    Screen Exit is nothing but enhancing the screen like creating some more fields, subscreen and so on.
    1. Go to the screen>System>Status-->Program (Double
    click this program. It will take you to the program.
    2. Now, Goto-->Object Directory Entry.
    3. Make a note the package name.
    4. Now run the transactions SMOD, press F4 and enter the
    above noted package, press enter.
    5. It will display list of Exits.
    6. Now go back to the initial screen SMOD.
    7. Specify the exit name here and select the radio button
    Components.
    8. It will display four group boxes one for FM, second
    for Fcodes, thrid for Screen areas and last for
    includes.
    9. Goto transaction CMOD, create a new project, and
    click the button "Enhancement assignments" and
    specify your enhancements that you got in SMOD.
    10. Now bouble clikc the enhancement, it will take you to editor with some includes starting with Z, double clikc the include you want to edit and proceed.
    and you just go through these links also
    Screen exit
    http://wiki.ittoolbox.com/index.php/HOWTO:Implement_a_screen_exit_to_a_standard_SAP_transaction
    screen-exits
    Check the following link.
    https://www.sdn.sap.com/irj/sdn/advancedsearch?query=how%20to%20find%20screen%20exits&cat=sdn_all
    Reward points if useful
    Regards
    Anji

  • Menu Exits and Screen Exits

    hi everyone,
    can you send me some examples on menu exits and screen exits.
    thank you.
    preetham

    Hi Preetham,
    In older versions MENU Exits approached through Transaction CMOD by creating
    PROJECTS and activating the project and assigning Program to that
    Transaction Codes. For MENU Exits, Transaction Codes will be starting with
    "+" sign and with default text "NODE TEXT NOT FOUND" for which you can
    assign your Report or Dialog Program etc., (for Eg:- +DW4 MENU Exits
    Transaction available in TOOLS --> ABAP Workbench --> Utilities --> <Node
    Text Not found>).
    Procedure for Creating MENU Exits.
    1) To get into Area Menu Maintenance Screen Type SE43 T.Code in Command
    Line.
    2) In Area Menu Paramenter type 'S000' (S triple Zero)
    3) Then Press Change Icon in Application Tool Bar. Then It may ask for
    Access Key [or] it may display "Specify Processing mode" window. If it ask
    for the Access Key Check for the availability of OSS Note and apply to open
    Standard SAP Menu to include MENU Exits. Otherwise, if it display "Specify
    Processing mode" window with Three Push Button. In which select "Change" and
    proceed further.
    4) Then it will display "Information" window with the following information
    "Caution : The Original Language of the structure is German (editing lang. :
    English) ". Then press "Enter Key to proceed further.
    5) Then you will get into "Edit Area Menu S000".
    6) for eg:- Expand Tools Menu.
    7) Then Press ABAP Workbench <Icon>.
    8) Then you will get into ABAP Workbench Menu Tree.
    9) Then Expand Utilities Menu.
    10) In the last line you will find one MENU EXIT Provision to include your
    own menu. "Node Text Not Found" This text can be change by double Clicking
    that. There you can find the T.Code. Here for Eg:- "+DW4".
    11) for eg: - Here change the Text to "Sample Menu Exit" and then note down
    the T.Code "+DW4".
    12) Then Save with Change Request Number and come out of Transaction SE43.
    13) Then Goto Transaction SE93.
    14) Then type T.Code "+DW4" and press Create.
    15) Then proceed further to create transaction called "+DW4".
    I hope this could help you in Creating Menu Exit...
    Creating menu exits
    http://help.sap.com/saphelp_nw04/helpdata/en/c8/19762743b111d1896f0000e8322d00/content.htm
    http://help.sap.com/saphelp_nw2004s/helpdata/en/83/7a18cbde6e11d195460000e82de14a/frameset.htm
    For screen exits.
    http://wiki.ittoolbox.com/index.php/HOWTO:Implement_a_screen_exit_to_a_standard_SAP_transaction
    Screen exits add fields to screens in R/3 applications. SAP creates screen exits by placing special subscreen areas on a standard R/3 screen and calling a customer subscreen from the standard screen’s flow logic.
    the tcode is cmod...
    1.From the main screen of the Project management transaction, proceed as follows:
    Select Enhancement components and choose Change.
    2.Choose Edit component.
    3.Choose the screen exit and double click on it
    4.Create your subscreen using the Screen Painter.
    5.Design your screen to be added to the standard screen and activate the particular screen and return back to the flow logic .
    6.Choose the PAI and PBO to write down the logic.
    7.Generate your screen and choose Back (the green arrow) to return to the Project management transaction.
    8.Go to the transaction ME22 to view the customer defined screen exit.
    9.Enter the purchase order number and press Enter.
    10.Go to the menu header --> Details.
    11.Purchase number is visible on the standard screen
    check the foll link,
    http://wiki.ittoolbox.com/index.php/HOWTO:Implement_a_screen_exit_to_a_standard_SAP_transaction
    Menu exits allow you to add your own functions to the pulldown menus in standard R/3 transactions. To take advantage of a menu exit, you first need to create a project as described in the section Creating an add-on project. Then, you must include the SAP enhancement package that contains the menu exit you want to use in your project. From the main screen of the Project management transaction, proceed as follows:
    Select Enhancement components and choose Change.
    The system lists all customer exits contained in the enhancements included in your project.
    Place the cursor on the menu exit you want to add your own function to.
    Choose Edit component.
    The system displays technical information about the menu entry. It also displays two input fields where you can specify a language and the text you want your menu item to have.
    Enter the name of your menu function (such as Special order method) in the field New text.
    Choose Save text.
    Your special menu function will not appear in the pulldown menu of the corresponding standard transaction until you activate your enhancement project.
    Specifying a menu text and activating your project are not the only steps you need to take to make your own menu item work. After you carry out these steps, your menu item will appear, but it will not call a corresponding function. To attach your menu entry to its corresponding function, you need to create a function module for the function module exit associated with your menu text. This function module exit is part of the same SAP enhancement that contains the menu exit you used. Creating Customer-Specific Function Modules tells you more about how to use function module exits.
    also refer
    MEnu Exit
    http://www.sap-img.com/abap/what-is-user-exits.htm
    Creating menu exits
    http://help.sap.com/saphelp_nw04/helpdata/en/c8/19762743b111d1896f0000e8322d00/content.htm
    http://help.sap.com/saphelp_nw2004s/helpdata/en/83/7a18cbde6e11d195460000e82de14a/frameset.htm
    For screen exits.
    http://wiki.ittoolbox.com/index.php/HOWTO:Implement_a_screen_exit_to_a_standard_SAP_transaction
    chech these links for user exists its usefull
    http://www.allsaplinks.com/user_exit.html
    Re: Screen exit
    user exit and customer exit
    http://help.sap.com/saphelp_47x200/helpdata/en/dd/561602545a11d1a7020000e829fd11/frameset.htm
    http://www.sap-basis-abap.com/sapab013.htm
    http://www.sap-img.com/abap/what-is-user-exits.htm
    How to implement screen exit for a SAP standard transaction
    Introduction
    SAP provides standard transactions to enter data into database. But a client may want to maintain some additional information in SAP other than what is provided.
    To make provisions for this, additional screens have to be provided and additional fields must be added into appropriate database table.
    To pave way for this, SAP has provided the option for screen exits. Usually, SAP provides the following:
    An append structure in the database table with the new fields.
    A subscreen area into the standard screen – where the programmer can attach his subscreen of his own program with the new fields.
    A function group under which the new subscreen has to be created with the new fields.
    Function exits to synchronize the PBO and PAI of the standard SAP program with the PBO and PAI of the subscreen – so that data can flow back and forth between the standard SAP program and the program written by the developer for the subscreen. These function modules also exist in the same function group under which the subscreen will have to be developed.
    Finally, a linkage has to be done between the subscreen area of standard SAP screen with the custom subscreen constructed by the developer.
    Typically, SAP provides an enhancement in which the developer can create an append structure, use the function exits to synchronize the PBO and PAI of the standard SAP program and the custom subscreen program, and make the necessary linking( as mentioned above in step 4. But, again, this is not a hard and fast rule. Linking in some case, is also done by configurations.) SAP also usually provides the name of the function group under which the subscreen has to be developed.
    Necessary guidance about implementing a screen exit development is usually available in the Documentation section of the enhancement ( can be availed by transaction SMOD).
    Pre-Requisites
    The developer to work on screen exit should have essential knowledge on the following:
    DDIC concepts, including the knowledge of append structure.
    Concept of SAP Enhancements and implementing them using Projects.
    Concept of function exits.
    Knowledge on Module Pool – including subscreens, Tabstrip controls etc.
    Steps
    Guidelines
    So, a developer can follow the guidelines mentioned below to implement a screen exit to a standard SAP transaction, as and when required:
    Find out the Required Enhancements
    Go to SMOD. Press F4 in the Enhancement field. In the next popup window, click pushbutton ‘SAP Applications’. A list will appear that contains information on all the enhancements, categorized under functional areas. Developer must search for the enhancements relevant to his functional area of interest – for e.g., Purchasing, Asset Accounting, etc.
    Note down the enhancements. Then, come to the initial screen of SMOD and view the documentation of each enhancement to find out which one is required for your development.
    Utilize the Enhancement in a Project
    After you have found one, do as directed in the documentation. Generally, the steps are as follows:
    Create a project using CMOD including your enhancement.
    Create the append structure with new fields.
    Go to the desired function group and create a subscreen with the new fields. Write PBO and PAI for the subscreen, if required.
    Use the function exits in the enhancement to link the PBO and PAI of the subscreen with that of the main SAP program supporting the SAP transaction.
    Maintain necessary linkage between the subscreen area of standard SAP program with the custom subscreen developed along with the custom program name. This can be done in the project (developed by CMOD including the enhancement) or outside as a part of configuration.
    Activate the project.
    Test to ensure that required functionality are met.
    Case Study 1
    Add three new custom fields for Asset master and maintain information for them
    Requirement
    Three fields in the legacy system have to be maintained in Asset master. These fields are:
    Original Asset number – 20 characters
    Location 2 – 15 Characters.
    Model no – 20 characters
    Location 2 should start with ‘L’.
    Pre-Analysis
    Finding out the Enhancement
    As described above, the enhancement is determined. It was found, that enhancement AIST0002 will serve the purpose. It contains the following components (can be viewed by transaction SMOD):
    Exit Type Description EXIT_SAPL1022_001 Function Exit Check of User-Defined Fields when Using Create and Change BAPI EXIT_SAPLAIST_002 Function Exit Transfer Data for User Subscreens in PBO. EXIT_SAPLAIST_003 Function Exit Transfer of User-Defined Fields to SAP Master Data Transactions CI_ANLU Customizing Include Include structure to add new fields
    Studying the Function Exits
    The function module level documentation for the function exits are then viewed from transaction SE37. The documentation clearly laid out for the purpose for their use:
    EXIT_SAPLAIST_002
    Function module Level Documentation
    This function module is called by asset master data maintenance at the start of the dialog. (When changing, it is called after reading of the data from the database; when creating it is called after the transfer of the default values from the asset class and reference asset.) The purpose of the function module is to enable this function group to recognize the master data. For interpreting or controlling master data fields that are important for user fields, it is possible to transfer to global variables at this point, so that they can be recognized when the user subscreens are processed.
    Import Parameters
    Understanding
    This function module is called at the PBO to pass the information retrieved from the database to pass them to the custom subscreen and its underlying program. Import parameter : I_ANLU will be populated with the values for user-defined fields which will be passed to the subscreen program. So, there must be some sort of variable assignment from I_ANLU.
    EXIT_SAPLAIST_003
    Function module Documentation: This function module is called by SAP asset master data maintenance after the screens are processed, but before saving. The purpose of the function module is to transfer fields entered on user sub-screens of SAP asset data maintenance to the database for updating. The export parameter for this function module is:
    Understanding
    This function module will be used to transfer the user entered data in the subscreen fields to the main SAP program, which will then be saved into the database.
    Studying the Documentation of the Enhancement
    The enhancement documentation (as is viewed from the initial screen of SMOD] also supports the idea. Moreover, it informs that we need to develop a subscreen under function group XAIS. This is the function group under which the two function exit modules also exist. So, if the custom subscreen refers to the global data of the function group XAIS, then those values will also be available to these function exits as well.
    Going to SE80 and viewing the function group XAIS helps us to inform that there are three DDIC tables declared for it:
    Deciding the Final course of Action
    After making all the investigations, the final course of action was determined.
    SrlNo Step Justification
    A project has to be created using transaction CMOD where the enhancement AIST0002 will be included.
    Customizing include CI_ANLU has to be created with the custom fields demanded When CI_ANLU will be developed, the custom fields will get appended to the database table ANLU. Also, these fields will be used to create screen fields in the new subscreen.
    A custom subscreen, say, 9000 will be developed under function group XAIS. The screen group for the screen will be ‘CUST’ (or any name). The three custom fields added to table ANLU (by creating CI_ANLU) will be used to create new fields in the screen.
    In the PAI of the subscreen, validation for Location to start with ‘L’ will be added. The subscreen with three new fields has to be developed so that it can be attached to a subscreen area of the asset master screens.
    In the custom include of the function exit module ‘EXIT_SAPLAIST_002’, the following code will be written:-
    ANLU = I_ANLU. I_ANLU is the import parameter of this FM. The value is assigned to the global variable ANLU, referring which the three new subscreen fields are developed. So, data retrieved from database table ANLU will be passed to this FM as I_ANLU by the standard SAP main program. The value will be taken and passed to the global variable of the function group XAIS, so that the three custom fields (referring to ANLU of XAIS) get populated.
    In the custom include of the function exit module ‘EXIT_SAPLAIST_003’, the following code will be written:-
    E_ANLU = ANLU. The changed values in the subscreen fields exist in global variable ANLU for the function group XAIS. This function exit module will pass the data back to the SAP main program as E_ANLU.
    Proper linkage/configuration has to be done so that the new subscreens get linked to the appropriate subscreen area of the Asset master screen. This has to be done – otherwise, the new custom subscreen will not be displayed in the Asset master screens.
    Development
    Creating a Project to include the enhancement
    Go to transaction CMOD and create a project.
    Enter a description for the project. Then, click on the pushbutton ‘Enhancement Assignments’ in the Application Toolbar.
    Enter the name of the enhancement and Save.
    Go to ‘Components’.
    Creating Custom Include for ANLU
    The screen shown below will appear, showing all the enhancement components under the assignment AIST0002. Double-click on the name of the Include Structure to create it.
    Create the include structure with three new fields, as required. Then, save and activate it.
    Develop the subscreen and the program
    Go to transaction SE80. For the function group XAIS, create a new subscreen 9000.
    Create it as subscreen.
    Then, go to the Layout of the screen and create three new fields from Database table ANLU.
    Drag the fields in the screen body and place them.
    Then, save and activate the screen and come back to screen flow editor.
    Create the PAI module to add validation for field “Location 2”, as required .
    Activate the whole function group and come out.
    Write code in the Function Exits to synchronize the programs
    Now, code has to be written in the function modules EXIT_SAPLAIST_002 and EXIT_SAPLAIST_003 so that data flows to and fro between the main SAP program and custom subscreen program. For that, go back to transaction CMOD and change the function exits.
    Write code in the function module EXIT_SAPLAIST_002 called once at the beginning of the transaction:
    Write code in EXIT_SAPLAIST_003 to pass the data from the subscreen to SAP main program.
    Then, activate everything – the whole project and come out.
    Complete the configuration to link the subscreen
    The development portion is complete. Now, linking of the subscreen has to be done with the subscreen area of the main program. In most of the cases, this linking can be done in the enhancement itself. But, here, requirement is a bit different. It is done by configuration using SPRO.
    Assets are created under Asset class. And for each asset class, there is a layout assigned to it. For a layout, there are multiple tab pages assigned to it. And, for each tab page, there are multiple screen groups/field groups assigned.
    Here, the requirement is to create these three custom fields in the tab page ‘General’ of asset master screen ( AS01/AS02/AS03/AS91).
    Determine the Layout
    To achieve this, first of all, we need to find out which layout is assigned to asset class 1000.For that, go to transaction AOLK( information has to be obtained from functional consultant).Select the Asset Class ‘1000’ and click on folder ‘General Assignment of Layout’.
    Here, for Asset class 1000, for all the user groups, tab layout SAP is assigned. Since layout ‘SAP’ cannot be changed, it has to be copied and manipulated to include our screen group. Later, the new layout has to be assigned over here.
    Create new tab layout
    Go to transaction AOLA. Copy the tab layout ‘SAP’ to create another layout, say, YSUB.
    System will copy all the settings and will inform you about that.
    Select your newly created layout and double-click on the folder ‘Tab page titles’.
    You want to put your custom fields in the tab page “General”. So, select this tab page entry and double-click on the folder "Position of Groups".
    Here, all the field groups currently residing in the tab-page “General” are shown. Add an entry for your newly created fields.
    Select the group box from the list. An entry will come with “U” padded with the custom subscreen prepared by you.
    Then, save and come out.
    Assign the new Layout to Asset Class
    Now, go to tcode AOLK and assign tab layout YSUB for asset class 1000.
    Save and come out.
    Test the Exit
    Everything is over. Now, go to transaction code AS01/02/03 or AS91 to deal with an asset of asset class 1000. You will see your new fields added to the screen. Add values to them…save. Then, enter into the tcodes again to see whether the values entered by you are being displayed or not.
    Original Source: ittoolbox.com
    MENU
    refer
    MEnu Exit
    just refer to the link below for step by step procedure with screen shots
    http://www.sapmaterial.com/?gclid=CN322K28t4sCFQ-WbgodSGbK2g
    Check this link:
    http://help.sap.com/saphelp_nw04/helpdata/en/c8/1975e643b111d1896f0000e8322d00/frameset.htm
    Menu exits allow you to add your own functions to the pulldown menus in standard R/3 transactions. To take advantage of a menu exit, you first need to create a project as described in the section Creating an add-on project. Then, you must include the SAP enhancement package that contains the menu exit you want to use in your project. From the main screen of the Project management transaction, proceed as follows:
    Select Enhancement components and choose Change.
    The system lists all customer exits contained in the enhancements included in your project.
    Place the cursor on the menu exit you want to add your own function to.
    Choose Edit component.
    The system displays technical information about the menu entry. It also displays two input fields where you can specify a language and the text you want your menu item to have.
    Enter the name of your menu function (such as Special order method) in the field New text.
    Choose Save text.
    Your special menu function will not appear in the pulldown menu of the corresponding standard transaction until you activate your enhancement project.
    Specifying a menu text and activating your project are not the only steps you need to take to make your own menu item work. After you carry out these steps, your menu item will appear, but it will not call a corresponding function. To attach your menu entry to its corresponding function, you need to create a function module for the function module exit associated with your menu text. This function module exit is part of the same SAP enhancement that contains the menu exit you used. Creating Customer-Specific Function Modules tells you more about how to use function module exits.
    User exits (Function module exits) are exits developed by SAP. The exit is implementerd as a call to a function module. The code for the function module is written by the developer. You are not writing the code directly in the function module, but in the include that is implemented in the function module.
    The naming standard of function modules for functionmodule exits is:
    EXIT_<program name><3 digit suffix>
    The call to a functionmodule exit is implemented as:
    CALL CUSTOMER.-FUNCTION <3 digit suffix>
    To find a Exit.
    Goto Transaction -- Find The Package
    SMOD >f4>Use the Package here to Find the Exits In the Package.
    Else if you Want to search by Application Area wise ,
    There is one more tab to find the Exits in the Respective Application Area.
    Implementing the Exit-- CMOD Create ProjectsAssgn your Component .
    Now Run ur Transaction to Check if it Triggers.
    Thats it..
    Suppose you need to find out all the user exits related to a tcode.
    1. Execute the Tcode.
    2. Open the SAP program.
    3. Get the Development Class.
    4. Execute Tcode SE84.
    5. Open the Node 'Envir. -> Exit Techniques -> 'Customer Exits -> Enhancements'
    6. Enter the Development class and execute.
    Check out this thread..
    The specified item was not found.
    1. Type the transaction : system->status-> <PROG. NAME>
    2 open SE37 , type EXIT<PROG NAME> and press F4 to get the list of function exits available.
    3. Open CMOD utilities->SAP enhancements
    EDIT->All selections
    4.type the function module name obtained in step 2, in fields 'component name' in 'additional selections' block. and execute.
    5. The displayed list contains the enhancements names for the transaction You were looking for.
    6. Create a project in CMOD and the code in default include->activate.
    http://www.erpgenie.com/sap/abap/code/abap26.htm
    which gives the list of exits for a tcode
    http://help.sap.com/saphelp_nw04/helpdata/en/bf/ec079f5db911d295ae0000e82de14a/frameset.htm
    For information on Exits, check these links
    http://www.sap-img.com/abap/a-short-tutorial-on-user-exits.htm
    http://www.sapgenie.com/abap/code/abap26.htm
    http://www.sap-img.com/abap/what-is-user-exits.htm
    http://wiki.ittoolbox.com/index.php/HOWTO:Implement_a_screen_exit_to_a_standard_SAP_transaction
    http://www.easymarketplace.de/userexit.php
    http://www.sap-img.com/abap/a-short-tutorial-on-user-exits.htm
    http://www.sappoint.com/abap/userexit.pdfUser-Exit
    http://www.planetsap.com/userexit_main_page.htm
    User-Exits
    http://www.sap-img.com/abap/a-short-tutorial-on-user-exits.htm
    http://www.sap-img.com/ab038.htm
    http://www.planetsap.com/userexit_main_page.htm
    http://www.sap-basis-abap.com/sapab013.htm
    http://sap.ittoolbox.com/documents/popular-q-and-a/user-exits-for-the-transaction-code-migo-3283
    These links will help you to learn more on user exits.
    http://www.sap-img.com/abap/a-short-tutorial-on-user-exits.htm
    http://help.sap.com/saphelp_nw04/helpdata/en/c8/1975cc43b111d1896f0000e8322d00/frameset.htm
    http://www.planetsap.com/userexit_main_page.htm
    http://www.allsaplinks.com/user_exit.html
    www.sap-img.com/abap/what-is-user-exits.htm
    Also please check these threads for more details about user exits.
    Re: Screen exit
    user exit and customer exit
    user exit
    1. Document on UserExits in FI/CO
    http://www.ficoexpertonline.com/downloads/User%20ExitsWPedit.doc
    2. Finding User Exits...
    http://sap.ionelburlacu.ro/abap/sap2/Other_Useful_Tips.html#Finding_User_Exits
    3. List of all User Exits...
    http://www.planetsap.com/userexit_main_page.htm
    Reward points if helpful.
    Thanks
    Naveen khan
    Message was edited by:
            Pattan Naveen

  • Screen Exits and Menu Exits

    Hi all,
    Can anyone help me with a step-by-step procedure or tutorial to create
    a) Screen exit
    b) Menu Exit...?
    Thanks and regards
    Shiva

    Hi Shiva,
    Check this...it will help u to create menu exit...
    Creating Customer-Specific Menus
    Menu exits allow you to add your own functions to the pulldown menus in standard R/3 transactions. To take advantage of a menu exit, you first need to create a project as described in the section Creating an add-on project. Then, you must include the SAP enhancement package that contains the menu exit you want to use in your project. From the main screen of the Project management transaction, proceed as follows:
    Select Enhancement components and choose Change.
    The system lists all customer exits contained in the enhancements included in your project.
    Place the cursor on the menu exit you want to add your own function to.
    Choose Edit component.
    The system displays technical information about the menu entry. It also displays two input fields where you can specify a language and the text you want your menu item to have.
    Enter the name of your menu function (such as Special order method) in the field New text.
    Choose Save text.
    Your special menu function will not appear in the pulldown menu of the corresponding standard transaction until you activate your enhancement project.
    Specifying a menu text and activating your project are not the only steps you need to take to make your own menu item work. After you carry out these steps, your menu item will appear, but it will not call a corresponding function. To attach your menu entry to its corresponding function, you need to create a function module for the function module exit associated with your menu text. This function module exit is part of the same SAP enhancement that contains the menu exit you used. Creating Customer-Specific Function Modules tells you more about how to use function module exits.
    Procedure for Creating MENU Exits:
    1) To get into Area Menu Maintenance Screen Type SE43 T.Code in Command
    Line.
    2) In Area Menu Paramenter type 'S000' (S triple Zero)
    3) Then Press Change Icon in Application Tool Bar. Then It may ask for
    Access Key [or] it may display "Specify Processing mode" window. If it ask
    for the Access Key Check for the availability of OSS Note and apply to open
    Standard SAP Menu to include MENU Exits. Otherwise, if it display "Specify
    Processing mode" window with Three Push Button. In which select "Change" and
    proceed further.
    4) Then it will display "Information" window with the following information
    "Caution : The Original Language of the structure is German (editing lang. :
    English) ". Then press "Enter Key to proceed further.
    5) Then you will get into "Edit Area Menu S000".
    6) for eg:- Expand Tools Menu.
    7) Then Press ABAP Workbench <Icon>.
    8) Then you will get into ABAP Workbench Menu Tree.
    9) Then Expand Utilities Menu.
    10) In the last line you will find one MENU EXIT Provision to include your
    own menu. "Node Text Not Found" This text can be change by double Clicking
    that. There you can find the T.Code. Here for Eg:- "+DW4".
    11) for eg: - Here change the Text to "Sample Menu Exit" and then note down
    the T.Code "+DW4".
    12) Then Save with Change Request Number and come out of Transaction SE43.
    13) Then Goto Transaction SE93.
    14) Then type T.Code "+DW4" and press Create.
    15) Then proceed further to create transaction called "+DW4".
    I hope this could help you in Creating Menu Exit...
    Regards,
    Kumar

  • Query on Screen Exits

    Hi,
    We have a requirement to add the field 'Cost Centre' to the transaction VA01.I believe that the same can be done using a screen exit.
    I would like to know the screen exit that can be used for this purpose and also how to go about doing this.
    Thanks and Regards,
    Nejuma Iqbal

    Hi check the exits available for VA01
    SDTRM001           Reschedule schedule lines without a new ATP check                     
    V45A0001            Determine alternative materials for product selection                 
    V45A0002            Predefine sold-to party in sales document                             
    V45A0003            Collector for customer function modulpool MV45A                       
    V45A0004            Copy packing proposal                                                 
    V45E0001            Update the purchase order from the sales order                        
    V45E0002            Data transfer in procurement elements (PRreq., assembly)              
    V45L0001            SD component supplier processing (customer enhancements)              
    V45P0001            SD customer function for cross-company code sales                     
    V45S0001            Update sales document from configuration                              
    V45S0003            MRP-relevance for incomplete configuration                            
    V45S0004            Effectivity type in sales order                                       
    V45W0001            SD Service Management: Forward Contract Data to Item                  
    V46H0001            SD Customer functions for resource-related billing                    
    V60F0001            SD Billing plan (customer enhancement) diff. to billing plan          
    SDAPO001            Activating Sourcing Subitem Quantity Propagation

  • Screen exit for me32k for header and for items

    hi experts,
    i need a screen exit  from me32k to add subscreen in :
    1. items
    2. header
    thanks in advanced,
    dana.

    Hi,
    Just some information on screen exits:
    Screen Exit:
    How to implement screen exit for a SAP standard transaction
    Introduction
    SAP provides standard transactions to enter data into database. But a client may want to maintain some additional information in SAP other than what is provided.
    To make provisions for this, additional screens have to be provided and additional fields must be added into appropriate database table.
    To pave way for this, SAP has provided the option for screen exits. Usually, SAP provides the following:
    An append structure in the database table with the new fields.
    A subscreen area into the standard screen – where the programmer can attach his subscreen of his own program with the new fields.
    A function group under which the new subscreen has to be created with the new fields.
    Function exits to synchronize the PBO and PAI of the standard SAP program with the PBO and PAI of the subscreen – so that data can flow back and forth between the standard SAP program and the program written by the developer for the subscreen. These function modules also exist in the same function group under which the subscreen will have to be developed.
    Finally, a linkage has to be done between the subscreen area of standard SAP screen with the custom subscreen constructed by the developer.
    Typically, SAP provides an enhancement in which the developer can create an append structure, use the function exits to synchronize the PBO and PAI of the standard SAP program and the custom subscreen program, and make the necessary linking( as mentioned above in step 4. But, again, this is not a hard and fast rule. Linking in some case, is also done by configurations.) SAP also usually provides the name of the function group under which the subscreen has to be developed.
    Necessary guidance about implementing a screen exit development is usually available in the Documentation section of the enhancement ( can be availed by transaction SMOD).
    Pre-Requisites
    The developer to work on screen exit should have essential knowledge on the following:
    DDIC concepts, including the knowledge of append structure.
    Concept of SAP Enhancements and implementing them using Projects.
    Concept of function exits.
    Knowledge on Module Pool – including subscreens, Tabstrip controls etc.
    Steps
    Guidelines
    So, a developer can follow the guidelines mentioned below to implement a screen exit to a standard SAP transaction, as and when required:
    Find out the Required Enhancements
    Go to SMOD. Press F4 in the Enhancement field. In the next popup window, click pushbutton ‘SAP Applications’. A list will appear that contains information on all the enhancements, categorized under functional areas. Developer must search for the enhancements relevant to his functional area of interest – for e.g., Purchasing, Asset Accounting, etc.
    Note down the enhancements. Then, come to the initial screen of SMOD and view the documentation of each enhancement to find out which one is required for your development.
    Utilize the Enhancement in a Project
    After you have found one, do as directed in the documentation. Generally, the steps are as follows:
    Create a project using CMOD including your enhancement.
    Create the append structure with new fields.
    Go to the desired function group and create a subscreen with the new fields. Write PBO and PAI for the subscreen, if required.
    Use the function exits in the enhancement to link the PBO and PAI of the subscreen with that of the main SAP program supporting the SAP transaction.
    Maintain necessary linkage between the subscreen area of standard SAP program with the custom subscreen developed along with the custom program name. This can be done in the project (developed by CMOD including the enhancement) or outside as a part of configuration.
    Activate the project.
    Test to ensure that required functionality are met.
    Case Study 1
    Add three new custom fields for Asset master and maintain information for them
    Requirement
    Three fields in the legacy system have to be maintained in Asset master. These fields are:
    Original Asset number – 20 characters
    Location 2 – 15 Characters.
    Model no – 20 characters
    Location 2 should start with ‘L’.
    Pre-Analysis
    Finding out the Enhancement
    As described above, the enhancement is determined. It was found, that enhancement AIST0002 will serve the purpose. It contains the following components (can be viewed by transaction SMOD):
    Exit Type Description EXIT_SAPL1022_001 Function Exit Check of User-Defined Fields when Using Create and Change BAPI EXIT_SAPLAIST_002 Function Exit Transfer Data for User Subscreens in PBO. EXIT_SAPLAIST_003 Function Exit Transfer of User-Defined Fields to SAP Master Data Transactions CI_ANLU Customizing Include Include structure to add new fields
    Studying the Function Exits
    The function module level documentation for the function exits are then viewed from transaction SE37. The documentation clearly laid out for the purpose for their use:
    EXIT_SAPLAIST_002
    Function module Level Documentation
    This function module is called by asset master data maintenance at the start of the dialog. (When changing, it is called after reading of the data from the database; when creating it is called after the transfer of the default values from the asset class and reference asset.) The purpose of the function module is to enable this function group to recognize the master data. For interpreting or controlling master data fields that are important for user fields, it is possible to transfer to global variables at this point, so that they can be recognized when the user subscreens are processed.
    Import Parameters
    Understanding
    This function module is called at the PBO to pass the information retrieved from the database to pass them to the custom subscreen and its underlying program. Import parameter : I_ANLU will be populated with the values for user-defined fields which will be passed to the subscreen program. So, there must be some sort of variable assignment from I_ANLU.
    EXIT_SAPLAIST_003
    Function module Documentation: This function module is called by SAP asset master data maintenance after the screens are processed, but before saving. The purpose of the function module is to transfer fields entered on user sub-screens of SAP asset data maintenance to the database for updating. The export parameter for this function module is:
    Understanding
    This function module will be used to transfer the user entered data in the subscreen fields to the main SAP program, which will then be saved into the database.
    Studying the Documentation of the Enhancement
    The enhancement documentation (as is viewed from the initial screen of SMOD] also supports the idea. Moreover, it informs that we need to develop a subscreen under function group XAIS. This is the function group under which the two function exit modules also exist. So, if the custom subscreen refers to the global data of the function group XAIS, then those values will also be available to these function exits as well.
    Going to SE80 and viewing the function group XAIS helps us to inform that there are three DDIC tables declared for it:
    Deciding the Final course of Action
    After making all the investigations, the final course of action was determined.
    SrlNo Step Justification
    A project has to be created using transaction CMOD where the enhancement AIST0002 will be included.
    Customizing include CI_ANLU has to be created with the custom fields demanded When CI_ANLU will be developed, the custom fields will get appended to the database table ANLU. Also, these fields will be used to create screen fields in the new subscreen.
    A custom subscreen, say, 9000 will be developed under function group XAIS. The screen group for the screen will be ‘CUST’ (or any name). The three custom fields added to table ANLU (by creating CI_ANLU) will be used to create new fields in the screen.
    In the PAI of the subscreen, validation for Location to start with ‘L’ will be added. The subscreen with three new fields has to be developed so that it can be attached to a subscreen area of the asset master screens.
    In the custom include of the function exit module ‘EXIT_SAPLAIST_002’, the following code will be written:-
    ANLU = I_ANLU. I_ANLU is the import parameter of this FM. The value is assigned to the global variable ANLU, referring which the three new subscreen fields are developed. So, data retrieved from database table ANLU will be passed to this FM as I_ANLU by the standard SAP main program. The value will be taken and passed to the global variable of the function group XAIS, so that the three custom fields (referring to ANLU of XAIS) get populated.
    In the custom include of the function exit module ‘EXIT_SAPLAIST_003’, the following code will be written:-
    E_ANLU = ANLU. The changed values in the subscreen fields exist in global variable ANLU for the function group XAIS. This function exit module will pass the data back to the SAP main program as E_ANLU.
    Proper linkage/configuration has to be done so that the new subscreens get linked to the appropriate subscreen area of the Asset master screen. This has to be done – otherwise, the new custom subscreen will not be displayed in the Asset master screens.
    Development
    Creating a Project to include the enhancement
    Go to transaction CMOD and create a project.
    Enter a description for the project. Then, click on the pushbutton ‘Enhancement Assignments’ in the Application Toolbar.
    Enter the name of the enhancement and Save.
    Go to ‘Components’.
    Creating Custom Include for ANLU
    The screen shown below will appear, showing all the enhancement components under the assignment AIST0002. Double-click on the name of the Include Structure to create it.
    Create the include structure with three new fields, as required. Then, save and activate it.
    Develop the subscreen and the program
    Go to transaction SE80. For the function group XAIS, create a new subscreen 9000.
    Create it as subscreen.
    Then, go to the Layout of the screen and create three new fields from Database table ANLU.
    Drag the fields in the screen body and place them.
    Then, save and activate the screen and come back to screen flow editor.
    Create the PAI module to add validation for field “Location 2”, as required .
    Activate the whole function group and come out.
    Write code in the Function Exits to synchronize the programs
    Now, code has to be written in the function modules EXIT_SAPLAIST_002 and EXIT_SAPLAIST_003 so that data flows to and fro between the main SAP program and custom subscreen program. For that, go back to transaction CMOD and change the function exits.
    Write code in the function module EXIT_SAPLAIST_002 called once at the beginning of the transaction:
    Write code in EXIT_SAPLAIST_003 to pass the data from the subscreen to SAP main program.
    Then, activate everything – the whole project and come out.
    Complete the configuration to link the subscreen
    The development portion is complete. Now, linking of the subscreen has to be done with the subscreen area of the main program. In most of the cases, this linking can be done in the enhancement itself. But, here, requirement is a bit different. It is done by configuration using SPRO.
    Assets are created under Asset class. And for each asset class, there is a layout assigned to it. For a layout, there are multiple tab pages assigned to it. And, for each tab page, there are multiple screen groups/field groups assigned.
    Here, the requirement is to create these three custom fields in the tab page ‘General’ of asset master screen ( AS01/AS02/AS03/AS91).
    Determine the Layout
    To achieve this, first of all, we need to find out which layout is assigned to asset class 1000.For that, go to transaction AOLK( information has to be obtained from functional consultant).Select the Asset Class ‘1000’ and click on folder ‘General Assignment of Layout’.
    Here, for Asset class 1000, for all the user groups, tab layout SAP is assigned. Since layout ‘SAP’ cannot be changed, it has to be copied and manipulated to include our screen group. Later, the new layout has to be assigned over here.
    Create new tab layout
    Go to transaction AOLA. Copy the tab layout ‘SAP’ to create another layout, say, YSUB.
    System will copy all the settings and will inform you about that.
    Select your newly created layout and double-click on the folder ‘Tab page titles’.
    You want to put your custom fields in the tab page “General”. So, select this tab page entry and double-click on the folder "Position of Groups".
    Here, all the field groups currently residing in the tab-page “General” are shown. Add an entry for your newly created fields.
    Select the group box from the list. An entry will come with “U” padded with the custom subscreen prepared by you.
    Then, save and come out.
    Assign the new Layout to Asset Class
    Now, go to tcode AOLK and assign tab layout YSUB for asset class 1000.
    Save and come out.
    Test the Exit
    Everything is over. Now, go to transaction code AS01/02/03 or AS91 to deal with an asset of asset class 1000. You will see your new fields added to the screen. Add values to them…save. Then, enter into the tcodes again to see whether the values entered by you are being displayed or not.
    Original Source: ittoolbox.com
    User Exits:
    User exits (Function module exits) are exits developed by SAP. The exit is implementerd as a call to a function module. The code for the function module is written by the developer. You are not writing the code directly in the function module, but in the include that is implemented in the function module.
    The naming standard of function modules for functionmodule exits is:
    EXIT_<program name><3 digit suffix>
    The call to a functionmodule exit is implemented as:
    CALL CUSTOMER.-FUNCTION <3 digit suffix>
    To find a Exit.
    Goto Transaction -- Find The Package
    SMOD >f4>Use the Package here to Find the Exits In the Package.
    Else if you Want to search by Application Area wise ,
    There is one more tab to find the Exits in the Respective Application Area.
    Implementing the Exit-- CMOD Create ProjectsAssgn your Component .
    Now Run ur Transaction to Check if it Triggers.
    Thats it..
    Suppose you need to find out all the user exits related to a tcode.
    1. Execute the Tcode.
    2. Open the SAP program.
    3. Get the Development Class.
    4. Execute Tcode SE84.
    5. Open the Node 'Envir. -> Exit Techniques -> 'Customer Exits -> Enhancements'
    6. Enter the Development class and execute.
    Check out this thread..
    The specified item was not found.
    1. Type the transaction : system->status-> <PROG. NAME>
    2 open SE37 , type EXIT<PROG NAME> and press F4 to get the list of function exits available.
    3. Open CMOD utilities->SAP enhancements
    EDIT->All selections
    4.type the function module name obtained in step 2, in fields 'component name' in 'additional selections' block. and execute.
    5. The displayed list contains the enhancements names for the transaction You were looking for.
    6. Create a project in CMOD and the code in default include->activate.
    http://www.erpgenie.com/sap/abap/code/abap26.htm
    which gives the list of exits for a tcode
    http://help.sap.com/saphelp_nw04/helpdata/en/bf/ec079f5db911d295ae0000e82de14a/frameset.htm
    For information on Exits, check these links
    http://www.sap-img.com/abap/a-short-tutorial-on-user-exits.htm
    http://www.sapgenie.com/abap/code/abap26.htm
    http://www.sap-img.com/abap/what-is-user-exits.htm
    http://wiki.ittoolbox.com/index.php/HOWTO:Implement_a_screen_exit_to_a_standard_SAP_transaction
    http://www.easymarketplace.de/userexit.php
    http://www.sap-img.com/abap/a-short-tutorial-on-user-exits.htm
    http://www.sappoint.com/abap/userexit.pdfUser-Exit
    http://www.planetsap.com/userexit_main_page.htm
    User-Exits
    http://www.sap-img.com/abap/a-short-tutorial-on-user-exits.htm
    http://www.sap-img.com/ab038.htm
    http://www.planetsap.com/userexit_main_page.htm
    http://www.sap-basis-abap.com/sapab013.htm
    http://sap.ittoolbox.com/documents/popular-q-and-a/user-exits-for-the-transaction-code-migo-3283
    These links will help you to learn more on user exits.
    http://www.sap-img.com/abap/a-short-tutorial-on-user-exits.htm
    http://help.sap.com/saphelp_nw04/helpdata/en/c8/1975cc43b111d1896f0000e8322d00/frameset.htm
    http://www.planetsap.com/userexit_main_page.htm
    http://www.allsaplinks.com/user_exit.html
    www.sap-img.com/abap/what-is-user-exits.htm
    Also please check these threads for more details about user exits.
    Re: Screen exit
    user exit and customer exit
    user exit
    1. Document on UserExits in FI/CO
    http://www.ficoexpertonline.com/downloads/User%20ExitsWPedit.doc
    2. Finding User Exits...
    http://sap.ionelburlacu.ro/abap/sap2/Other_Useful_Tips.html#Finding_User_Exits
    3. List of all User Exits...
    http://www.planetsap.com/userexit_main_page.htm
    Reward if found helpfull,
    Cheers,
    Chaitanya.

  • Screen exit in VA01

    HI gurus,
    I need to add some custom fields in VA01 tcode in header level Additional DATA B Tab and also in item level.
    i came to know in SDN we can do it using screens 8309 & 8310. I didn't implement them before ...
    can anyone provide step by step procedure for this enhancement?
    thanks in advance
    Regards
    Giri

    Hi Giri,
    Previously in my project I also got the same requirement to use Header Level and Item Level additional B tab's for adding some extra custom fields which should be filled based on the Billing Plan data. So for this requirement I have used screen's 8309 (Header Level) and 8459 (Item Level).
    In order to use these screens you need to first of all get the access keys from the BASIS people.
    Proceed as follows.
    1. Execute SE51 and input the program name as SAPMV45A
    2. Input the Screen number as 8309 or 8310 and press change.
    3. System will ask you for the access key. Take the screen shot of the same and send it to BASIS team requesting for the access key. Similarly you'll also be needing the access keys for the following Include programs as well for Declaring Variables etc... and other processing logic.
    MV45ATZZ, MV45AOZZ, MV45AIZZ
    Similar is the procedure for Item level screen modification.
    4. Once you get the access key go ahead and change the screen to add the fields according to your requirement.
    5. After completing the layout part you need to create PBO and PAI modules starting with ZZ as prescribed by SAP and then implement them.
    Refer to the following link about User Exits prescribed by SAP.
    [http://help.sap.com/saphelp_46c/helpdata/en/1c/f62c7dd435d1118b3f0060b03ca329/content.htm]
    Hope this is helpful to you. Reward accordingly.
    Thanks and Regards,
    Maddineni Bharath.

  • Screen Exit LM03

    Exit : MWMRF212 ENHANCEMENT FOR USER SCREENS (LOGICAL SCREEN 0212)
    Transaction LM03
    Screen 2212
    Hi,
    I need a new Field (Read Only) on the Screen SAPLLMOB /2212
    So I enhance transaction LM03 with this Exit MWMRF212.
    1.     Copied Dynpro SAPLLMOB/ 2212 to SAPLXLRF/9212
    2.     Customize the new screen in u201CScreen formatu201D u201CAssign Processor to Queuesu201D  and u201CDefine Screen Managementu201D u2013 the new 9212 screen is called u2013 > OK for me
    But now when I start the transaction no fields are filled with the corresponding value?!
    My next step was to define global values in Prog. SAPLXLRF  as they used in the screen und fill this in exit EXIT_SAPLLMOB_170. -> And now the values are shown in the screen.
    But the whole function about screen modification is missingu2026 like u201CLOOP AT SCREENu201D logic. So you find screen element on the new screen that would be hidden in the original screen. (The whole PBO is missing because the modules exist not in the new Prog.)
    I think the effort is a bit too much for a new field.
    Can someone please help?
    Regards
    Peter

    Exit : MWMRF212 ENHANCEMENT FOR USER SCREENS (LOGICAL SCREEN 0212)
    Transaction LM03
    Screen 2212
    Hi,
    I need a new Field (Read Only) on the Screen SAPLLMOB /2212
    So I enhance transaction LM03 with this Exit MWMRF212.
    1.     Copied Dynpro SAPLLMOB/ 2212 to SAPLXLRF/9212
    2.     Customize the new screen in u201CScreen formatu201D u201CAssign Processor to Queuesu201D  and u201CDefine Screen Managementu201D u2013 the new 9212 screen is called u2013 > OK for me
    But now when I start the transaction no fields are filled with the corresponding value?!
    My next step was to define global values in Prog. SAPLXLRF  as they used in the screen und fill this in exit EXIT_SAPLLMOB_170. -> And now the values are shown in the screen.
    But the whole function about screen modification is missingu2026 like u201CLOOP AT SCREENu201D logic. So you find screen element on the new screen that would be hidden in the original screen. (The whole PBO is missing because the modules exist not in the new Prog.)
    I think the effort is a bit too much for a new field.
    Can someone please help?
    Regards
    Peter

  • Want to know about User exit in detail

    Hi ALL,
    I M NEW TO sap ABAP. I WANT TO KNOW ABOUT USER EXIT IN DETAIL. PLS DO THE NEEDFUL . If there are eny document regarding this pls mail to this id [email protected]
    thanks and regards
    Nandha

    Hi Nanda,
    Welcome to SDN,
    Userxits allow us to add our own functionality to SAP standard program
    without modifying it . These are implemented in the form of subroutines and hence are also known as FORM EXITs. The userexits are generally collected in includes and attached to the standard program by the SAP.
    User exits are used when the flow for a particular transaction has to take some other route other then the normal flow. this can be the case when you have to attach some additional functionality lik u need a customised screen, or new functionality (using a functional module). based on these things user exits can be classified as screen exits, function module exits, field exits( not used anymore). hope this gives some help on userexits.
    The naming standard of function modules for functionmodule exits is:
    EXIT_<program name><3 digit suffix>
    The call to a functionmodule exit is implemented as:
    CALL CUSTOMER.-FUNCTION <3 digit suffix>
    To find a Exit.
    Goto Transaction -- Find The Package
    SMOD >f4>Use the Package here to Find the Exits In the Package.
    Else if you Want to search by Application Area wise ,
    There is one more tab to find the Exits in the Respective Application Area.
    Implementing the Exit-- CMOD Create ProjectsAssgn your Component .
    Now Run ur Transaction to Check if it Triggers.
    Thats it..
    For More information on Exits, check these links
    http://www.sap-img.com/abap/a-short-tutorial-on-user-exits.htm
    http://www.sap-img.com/ab038.htm
    http://www.planetsap.com/userexit_main_page.htm
    http://www.sap-basis-abap.com/sapab013.htm
    http://sap.ittoolbox.com/documents/popular-q-and-a/user-exits-for-the-transaction-code-migo-3283
    These links will help you to learn more on user exits.
    http://www.sap-img.com/abap/a-short-tutorial-on-user-exits.htm
    http://help.sap.com/saphelp_nw04/helpdata/en/c8/1975cc43b111d1896f0000e8322d00/frameset.htm
    http://www.planetsap.com/userexit_main_page.htm
    http://www.allsaplinks.com/user_exit.html
    www.sap-img.com/abap/what-is-user-exits.htm
    Also please check these threads for more details about user exits.
    Re: Screen exit
    user exit and customer exit
    user exit
    1. Document on UserExits in FI/CO
    http://www.ficoexpertonline.com/downloads/User%20ExitsWPedit.doc
    2. Finding User Exits...
    http://sap.ionelburlacu.ro/abap/sap2/Other_Useful_Tips.html#Finding_User_Exits
    3. List of all User Exits...
    http://www.planetsap.com/userexit_main_page.htm

  • Someone has a tutorial for creating screen exit?

    I have a development and I do not know how to create screen exit.
    Case Someone has a tutorial for creating screen exit please help me
    Thank you
    <b><i>Wagner Duarte
    Consultant - SAP ABAP</i></b>

    hI
    Screen Exit is nothing but enhancing the screen like creating some more fields, subscreen and so on.
    1. Go to the screen>System>Status-->Program (Double
    click this program. It will take you to the program.
    2. Now, Goto-->Object Directory Entry.
    3. Make a note the package name.
    4. Now run the transactions SMOD, press F4 and enter the
    above noted package, press enter.
    5. It will display list of Exits.
    6. Now go back to the initial screen SMOD.
    7. Specify the exit name here and select the radio button
    Components.
    8. It will display four group boxes one for FM, second
    for Fcodes, thrid for Screen areas and last for
    includes.
    9. Goto transaction CMOD, create a new project, and
    click the button "Enhancement assignments" and
    specify your enhancements that you got in SMOD.
    10. Now bouble clikc the enhancement, it will take you to editor with some includes starting with Z, double clikc the include you want to edit and proceed.
    Have a look at below link It will definately help you to undestand the same.
    http://wiki.ittoolbox.com/index.php/HOWTO:Implement_a_screen_exit_to_a_standard_SAP_transaction
    check these links.
    http://help.sap.com/saphelp_46c/helpdata/en/c8/1975e643b111d1896f0000e8322d00/frameset.htm
    http://www.allsaplinks.com/screen_exit.html
    USER EXITS
    https://forums.sdn.sap.com/click.jspa?searchID=672084&messageID=312792
    https://forums.sdn.sap.com/click.jspa?searchID=672084&messageID=1320078
    https://forums.sdn.sap.com/click.jspa?searchID=672084&messageID=2669896
    How to implement screen exit for a SAP standard transaction
    Introduction
    SAP provides standard transactions to enter data into database. But a client may want to maintain some additional information in SAP other than what is provided.
    To make provisions for this, additional screens have to be provided and additional fields must be added into appropriate database table.
    To pave way for this, SAP has provided the option for screen exits. Usually, SAP provides the following:
    An append structure in the database table with the new fields.
    A subscreen area into the standard screen – where the programmer can attach his subscreen of his own program with the new fields.
    A function group under which the new subscreen has to be created with the new fields.
    Function exits to synchronize the PBO and PAI of the standard SAP program with the PBO and PAI of the subscreen – so that data can flow back and forth between the standard SAP program and the program written by the developer for the subscreen. These function modules also exist in the same function group under which the subscreen will have to be developed.
    Finally, a linkage has to be done between the subscreen area of standard SAP screen with the custom subscreen constructed by the developer.
    Typically, SAP provides an enhancement in which the developer can create an append structure, use the function exits to synchronize the PBO and PAI of the standard SAP program and the custom subscreen program, and make the necessary linking( as mentioned above in step 4. But, again, this is not a hard and fast rule. Linking in some case, is also done by configurations.) SAP also usually provides the name of the function group under which the subscreen has to be developed.
    Necessary guidance about implementing a screen exit development is usually available in the Documentation section of the enhancement ( can be availed by transaction SMOD).
    Pre-Requisites
    The developer to work on screen exit should have essential knowledge on the following:
    DDIC concepts, including the knowledge of append structure.
    Concept of SAP Enhancements and implementing them using Projects.
    Concept of function exits.
    Knowledge on Module Pool – including subscreens, Tabstrip controls etc.
    Steps
    Guidelines
    So, a developer can follow the guidelines mentioned below to implement a screen exit to a standard SAP transaction, as and when required:
    Find out the Required Enhancements
    Go to SMOD. Press F4 in the Enhancement field. In the next popup window, click pushbutton ‘SAP Applications’. A list will appear that contains information on all the enhancements, categorized under functional areas. Developer must search for the enhancements relevant to his functional area of interest – for e.g., Purchasing, Asset Accounting, etc.
    Note down the enhancements. Then, come to the initial screen of SMOD and view the documentation of each enhancement to find out which one is required for your development.
    Utilize the Enhancement in a Project
    After you have found one, do as directed in the documentation. Generally, the steps are as follows:
    Create a project using CMOD including your enhancement.
    Create the append structure with new fields.
    Go to the desired function group and create a subscreen with the new fields. Write PBO and PAI for the subscreen, if required.
    Use the function exits in the enhancement to link the PBO and PAI of the subscreen with that of the main SAP program supporting the SAP transaction.
    Maintain necessary linkage between the subscreen area of standard SAP program with the custom subscreen developed along with the custom program name. This can be done in the project (developed by CMOD including the enhancement) or outside as a part of configuration.
    Activate the project.
    Test to ensure that required functionality are met.
    Case Study 1
    Add three new custom fields for Asset master and maintain information for them
    Requirement
    Three fields in the legacy system have to be maintained in Asset master. These fields are:
    Original Asset number – 20 characters
    Location 2 – 15 Characters.
    Model no – 20 characters
    Location 2 should start with ‘L’.
    Pre-Analysis
    Finding out the Enhancement
    As described above, the enhancement is determined. It was found, that enhancement AIST0002 will serve the purpose. It contains the following components (can be viewed by transaction SMOD):
    Exit Type Description EXIT_SAPL1022_001 Function Exit Check of User-Defined Fields when Using Create and Change BAPI EXIT_SAPLAIST_002 Function Exit Transfer Data for User Subscreens in PBO. EXIT_SAPLAIST_003 Function Exit Transfer of User-Defined Fields to SAP Master Data Transactions CI_ANLU Customizing Include Include structure to add new fields
    Studying the Function Exits
    The function module level documentation for the function exits are then viewed from transaction SE37. The documentation clearly laid out for the purpose for their use:
    EXIT_SAPLAIST_002
    Function module Level Documentation
    This function module is called by asset master data maintenance at the start of the dialog. (When changing, it is called after reading of the data from the database; when creating it is called after the transfer of the default values from the asset class and reference asset.) The purpose of the function module is to enable this function group to recognize the master data. For interpreting or controlling master data fields that are important for user fields, it is possible to transfer to global variables at this point, so that they can be recognized when the user subscreens are processed.
    Import Parameters
    Understanding
    This function module is called at the PBO to pass the information retrieved from the database to pass them to the custom subscreen and its underlying program. Import parameter : I_ANLU will be populated with the values for user-defined fields which will be passed to the subscreen program. So, there must be some sort of variable assignment from I_ANLU.
    EXIT_SAPLAIST_003
    Function module Documentation: This function module is called by SAP asset master data maintenance after the screens are processed, but before saving. The purpose of the function module is to transfer fields entered on user sub-screens of SAP asset data maintenance to the database for updating. The export parameter for this function module is:
    Understanding
    This function module will be used to transfer the user entered data in the subscreen fields to the main SAP program, which will then be saved into the database.
    Studying the Documentation of the Enhancement
    The enhancement documentation (as is viewed from the initial screen of SMOD] also supports the idea. Moreover, it informs that we need to develop a subscreen under function group XAIS. This is the function group under which the two function exit modules also exist. So, if the custom subscreen refers to the global data of the function group XAIS, then those values will also be available to these function exits as well.
    Going to SE80 and viewing the function group XAIS helps us to inform that there are three DDIC tables declared for it:
    Deciding the Final course of Action
    After making all the investigations, the final course of action was determined.
    SrlNo Step Justification
    A project has to be created using transaction CMOD where the enhancement AIST0002 will be included.
    Customizing include CI_ANLU has to be created with the custom fields demanded When CI_ANLU will be developed, the custom fields will get appended to the database table ANLU. Also, these fields will be used to create screen fields in the new subscreen.
    A custom subscreen, say, 9000 will be developed under function group XAIS. The screen group for the screen will be ‘CUST’ (or any name). The three custom fields added to table ANLU (by creating CI_ANLU) will be used to create new fields in the screen.
    In the PAI of the subscreen, validation for Location to start with ‘L’ will be added. The subscreen with three new fields has to be developed so that it can be attached to a subscreen area of the asset master screens.
    In the custom include of the function exit module ‘EXIT_SAPLAIST_002’, the following code will be written:-
    ANLU = I_ANLU. I_ANLU is the import parameter of this FM. The value is assigned to the global variable ANLU, referring which the three new subscreen fields are developed. So, data retrieved from database table ANLU will be passed to this FM as I_ANLU by the standard SAP main program. The value will be taken and passed to the global variable of the function group XAIS, so that the three custom fields (referring to ANLU of XAIS) get populated.
    In the custom include of the function exit module ‘EXIT_SAPLAIST_003’, the following code will be written:-
    E_ANLU = ANLU. The changed values in the subscreen fields exist in global variable ANLU for the function group XAIS. This function exit module will pass the data back to the SAP main program as E_ANLU.
    Proper linkage/configuration has to be done so that the new subscreens get linked to the appropriate subscreen area of the Asset master screen. This has to be done – otherwise, the new custom subscreen will not be displayed in the Asset master screens.
    Development
    Creating a Project to include the enhancement
    Go to transaction CMOD and create a project.
    Enter a description for the project. Then, click on the pushbutton ‘Enhancement Assignments’ in the Application Toolbar.
    Enter the name of the enhancement and Save.
    Go to ‘Components’.
    Creating Custom Include for ANLU
    The screen shown below will appear, showing all the enhancement components under the assignment AIST0002. Double-click on the name of the Include Structure to create it.
    Create the include structure with three new fields, as required. Then, save and activate it.
    Develop the subscreen and the program
    Go to transaction SE80. For the function group XAIS, create a new subscreen 9000.
    Create it as subscreen.
    Then, go to the Layout of the screen and create three new fields from Database table ANLU.
    Drag the fields in the screen body and place them.
    Then, save and activate the screen and come back to screen flow editor.
    Create the PAI module to add validation for field “Location 2”, as required .
    Activate the whole function group and come out.
    Write code in the Function Exits to synchronize the programs
    Now, code has to be written in the function modules EXIT_SAPLAIST_002 and EXIT_SAPLAIST_003 so that data flows to and fro between the main SAP program and custom subscreen program. For that, go back to transaction CMOD and change the function exits.
    Write code in the function module EXIT_SAPLAIST_002 called once at the beginning of the transaction:
    Write code in EXIT_SAPLAIST_003 to pass the data from the subscreen to SAP main program.
    Then, activate everything – the whole project and come out.
    Complete the configuration to link the subscreen
    The development portion is complete. Now, linking of the subscreen has to be done with the subscreen area of the main program. In most of the cases, this linking can be done in the enhancement itself. But, here, requirement is a bit different. It is done by configuration using SPRO.
    Assets are created under Asset class. And for each asset class, there is a layout assigned to it. For a layout, there are multiple tab pages assigned to it. And, for each tab page, there are multiple screen groups/field groups assigned.
    Here, the requirement is to create these three custom fields in the tab page ‘General’ of asset master screen ( AS01/AS02/AS03/AS91).
    Determine the Layout
    To achieve this, first of all, we need to find out which layout is assigned to asset class 1000.For that, go to transaction AOLK( information has to be obtained from functional consultant).Select the Asset Class ‘1000’ and click on folder ‘General Assignment of Layout’.
    Here, for Asset class 1000, for all the user groups, tab layout SAP is assigned. Since layout ‘SAP’ cannot be changed, it has to be copied and manipulated to include our screen group. Later, the new layout has to be assigned over here.
    Create new tab layout
    Go to transaction AOLA. Copy the tab layout ‘SAP’ to create another layout, say, YSUB.
    System will copy all the settings and will inform you about that.
    Select your newly created layout and double-click on the folder ‘Tab page titles’.
    You want to put your custom fields in the tab page “General”. So, select this tab page entry and double-click on the folder "Position of Groups".
    Here, all the field groups currently residing in the tab-page “General” are shown. Add an entry for your newly created fields.
    Select the group box from the list. An entry will come with “U” padded with the custom subscreen prepared by you.
    Then, save and come out.
    Assign the new Layout to Asset Class
    Now, go to tcode AOLK and assign tab layout YSUB for asset class 1000.
    Save and come out.
    Test the Exit
    Everything is over. Now, go to transaction code AS01/02/03 or AS91 to deal with an asset of asset class 1000. You will see your new fields added to the screen. Add values to them…save. Then, enter into the tcodes again to see whether the values entered by you are being displayed or not.
    Original Source: ittoolbox.com
    Screen Exit is nothing but enhancing the screen like creating some more fields, subscreen and so on.
    1. Go to the screen>System>Status-->Program (Double
    click this program. It will take you to the program.
    2. Now, Goto-->Object Directory Entry.
    3. Make a note the package name.
    4. Now run the transactions SMOD, press F4 and enter the
    above noted package, press enter.
    5. It will display list of Exits.
    6. Now go back to the initial screen SMOD.
    7. Specify the exit name here and select the radio button
    Components.
    8. It will display four group boxes one for FM, second
    for Fcodes, thrid for Screen areas and last for
    includes.
    9. Goto transaction CMOD, create a new project, and
    click the button "Enhancement assignments" and
    specify your enhancements that you got in SMOD.
    10. Now bouble clikc the enhancement, it will take you to editor with some includes starting with Z, double clikc the include you want to edit and proceed.
    and you just go through these links also
    Screen exit
    http://wiki.ittoolbox.com/index.php/HOWTO:Implement_a_screen_exit_to_a_standard_SAP_transaction
    screen-exits
    Check the following link.
    https://www.sdn.sap.com/irj/sdn/advancedsearch?query=how%20to%20find%20screen%20exits&cat=sdn_all

  • Urgent. Need to know about user exits.

    Hello Everyone,
    I am new to this forum. I need to know about user exits.
    My next project requires me to implement user exits, screen exits, etc.
    I am a rookie to this topic.
    Can anyone help me as to how to start with his topic.
    Any sort of help is appreciated.
    Cheers,
    Neelam.

    Hi Neelam,
    Welcome to sdn.
    This is a very frequently asked topic.
    Please use teh search forum option for this type of queries.
    http://help.sap.com/saphelp_47x200/helpdata/en/c8/19763443b111d1896f0000e8322d00/frameset.htm
    Regards,
    Ravi

  • Screen exit and menu exit

    want some examples and step by step guide for menu exits and screen exits.

    Screen exits add fields to screens in R/3 applications. SAP creates screen exits by placing special subscreen areas on a standard R/3 screen and calling a customer subscreen from the standard screen’s flow logic.
    the tcode is cmod...
    1.From the main screen of the Project management transaction, proceed as follows:
    Select Enhancement components and choose Change.
    2.Choose Edit component.
    3.Choose the screen exit and double click on it
    4.Create your subscreen using the Screen Painter.
    5.Design your screen to be added to the standard screen and activate the particular screen and return back to the flow logic .
    6.Choose the PAI and PBO to write down the logic.
    7.Generate your screen and choose Back (the green arrow) to return to the Project management transaction.
    8.Go to the transaction ME22 to view the customer defined screen exit.
    9.Enter the purchase order number and press Enter.
    10.Go to the menu header --> Details.
    11.Purchase number is visible on the standard screen
    check the foll link,
    http://wiki.ittoolbox.com/index.php/HOWTO:Implement_a_screen_exit_to_a_standard_SAP_transaction
    Menu exits allow you to add your own functions to the pulldown menus in standard R/3 transactions. To take advantage of a menu exit, you first need to create a project as described in the section Creating an add-on project. Then, you must include the SAP enhancement package that contains the menu exit you want to use in your project. From the main screen of the Project management transaction, proceed as follows:
    Select Enhancement components and choose Change.
    The system lists all customer exits contained in the enhancements included in your project.
    Place the cursor on the menu exit you want to add your own function to.
    Choose Edit component.
    The system displays technical information about the menu entry. It also displays two input fields where you can specify a language and the text you want your menu item to have.
    Enter the name of your menu function (such as Special order method) in the field New text.
    Choose Save text.
    Your special menu function will not appear in the pulldown menu of the corresponding standard transaction until you activate your enhancement project.
    Specifying a menu text and activating your project are not the only steps you need to take to make your own menu item work. After you carry out these steps, your menu item will appear, but it will not call a corresponding function. To attach your menu entry to its corresponding function, you need to create a function module for the function module exit associated with your menu text. This function module exit is part of the same SAP enhancement that contains the menu exit you used. Creating Customer-Specific Function Modules tells you more about how to use function module exits.
    also refer
    MEnu Exit
    http://www.sap-img.com/abap/what-is-user-exits.htm
    Creating menu exits
    http://help.sap.com/saphelp_nw04/helpdata/en/c8/19762743b111d1896f0000e8322d00/content.htm
    http://help.sap.com/saphelp_nw2004s/helpdata/en/83/7a18cbde6e11d195460000e82de14a/frameset.htm
    For screen exits.
    http://wiki.ittoolbox.com/index.php/HOWTO:Implement_a_screen_exit_to_a_standard_SAP_transaction
    chech these links for user exists its usefull
    http://www.allsaplinks.com/user_exit.html
    Re: Screen exit
    user exit and customer exit
    http://help.sap.com/saphelp_47x200/helpdata/en/dd/561602545a11d1a7020000e829fd11/frameset.htm
    http://www.sap-basis-abap.com/sapab013.htm
    http://www.sap-img.com/abap/what-is-user-exits.htm
    How to implement screen exit for a SAP standard transaction
    Introduction
    SAP provides standard transactions to enter data into database. But a client may want to maintain some additional information in SAP other than what is provided.
    To make provisions for this, additional screens have to be provided and additional fields must be added into appropriate database table.
    To pave way for this, SAP has provided the option for screen exits. Usually, SAP provides the following:
    An append structure in the database table with the new fields.
    A subscreen area into the standard screen – where the programmer can attach his subscreen of his own program with the new fields.
    A function group under which the new subscreen has to be created with the new fields.
    Function exits to synchronize the PBO and PAI of the standard SAP program with the PBO and PAI of the subscreen – so that data can flow back and forth between the standard SAP program and the program written by the developer for the subscreen. These function modules also exist in the same function group under which the subscreen will have to be developed.
    Finally, a linkage has to be done between the subscreen area of standard SAP screen with the custom subscreen constructed by the developer.
    Typically, SAP provides an enhancement in which the developer can create an append structure, use the function exits to synchronize the PBO and PAI of the standard SAP program and the custom subscreen program, and make the necessary linking( as mentioned above in step 4. But, again, this is not a hard and fast rule. Linking in some case, is also done by configurations.) SAP also usually provides the name of the function group under which the subscreen has to be developed.
    Necessary guidance about implementing a screen exit development is usually available in the Documentation section of the enhancement ( can be availed by transaction SMOD).
    Pre-Requisites
    The developer to work on screen exit should have essential knowledge on the following:
    DDIC concepts, including the knowledge of append structure.
    Concept of SAP Enhancements and implementing them using Projects.
    Concept of function exits.
    Knowledge on Module Pool – including subscreens, Tabstrip controls etc.
    Steps
    Guidelines
    So, a developer can follow the guidelines mentioned below to implement a screen exit to a standard SAP transaction, as and when required:
    Find out the Required Enhancements
    Go to SMOD. Press F4 in the Enhancement field. In the next popup window, click pushbutton ‘SAP Applications’. A list will appear that contains information on all the enhancements, categorized under functional areas. Developer must search for the enhancements relevant to his functional area of interest – for e.g., Purchasing, Asset Accounting, etc.
    Note down the enhancements. Then, come to the initial screen of SMOD and view the documentation of each enhancement to find out which one is required for your development.
    Utilize the Enhancement in a Project
    After you have found one, do as directed in the documentation. Generally, the steps are as follows:
    Create a project using CMOD including your enhancement.
    Create the append structure with new fields.
    Go to the desired function group and create a subscreen with the new fields. Write PBO and PAI for the subscreen, if required.
    Use the function exits in the enhancement to link the PBO and PAI of the subscreen with that of the main SAP program supporting the SAP transaction.
    Maintain necessary linkage between the subscreen area of standard SAP program with the custom subscreen developed along with the custom program name. This can be done in the project (developed by CMOD including the enhancement) or outside as a part of configuration.
    Activate the project.
    Test to ensure that required functionality are met.
    Case Study 1
    Add three new custom fields for Asset master and maintain information for them
    Requirement
    Three fields in the legacy system have to be maintained in Asset master. These fields are:
    Original Asset number – 20 characters
    Location 2 – 15 Characters.
    Model no – 20 characters
    Location 2 should start with ‘L’.
    Pre-Analysis
    Finding out the Enhancement
    As described above, the enhancement is determined. It was found, that enhancement AIST0002 will serve the purpose. It contains the following components (can be viewed by transaction SMOD):
    Exit Type Description EXIT_SAPL1022_001 Function Exit Check of User-Defined Fields when Using Create and Change BAPI EXIT_SAPLAIST_002 Function Exit Transfer Data for User Subscreens in PBO. EXIT_SAPLAIST_003 Function Exit Transfer of User-Defined Fields to SAP Master Data Transactions CI_ANLU Customizing Include Include structure to add new fields
    Studying the Function Exits
    The function module level documentation for the function exits are then viewed from transaction SE37. The documentation clearly laid out for the purpose for their use:
    EXIT_SAPLAIST_002
    Function module Level Documentation
    This function module is called by asset master data maintenance at the start of the dialog. (When changing, it is called after reading of the data from the database; when creating it is called after the transfer of the default values from the asset class and reference asset.) The purpose of the function module is to enable this function group to recognize the master data. For interpreting or controlling master data fields that are important for user fields, it is possible to transfer to global variables at this point, so that they can be recognized when the user subscreens are processed.
    Import Parameters
    Understanding
    This function module is called at the PBO to pass the information retrieved from the database to pass them to the custom subscreen and its underlying program. Import parameter : I_ANLU will be populated with the values for user-defined fields which will be passed to the subscreen program. So, there must be some sort of variable assignment from I_ANLU.
    EXIT_SAPLAIST_003
    Function module Documentation: This function module is called by SAP asset master data maintenance after the screens are processed, but before saving. The purpose of the function module is to transfer fields entered on user sub-screens of SAP asset data maintenance to the database for updating. The export parameter for this function module is:
    Understanding
    This function module will be used to transfer the user entered data in the subscreen fields to the main SAP program, which will then be saved into the database.
    Studying the Documentation of the Enhancement
    The enhancement documentation (as is viewed from the initial screen of SMOD] also supports the idea. Moreover, it informs that we need to develop a subscreen under function group XAIS. This is the function group under which the two function exit modules also exist. So, if the custom subscreen refers to the global data of the function group XAIS, then those values will also be available to these function exits as well.
    Going to SE80 and viewing the function group XAIS helps us to inform that there are three DDIC tables declared for it:
    Deciding the Final course of Action
    After making all the investigations, the final course of action was determined.
    SrlNo Step Justification
    A project has to be created using transaction CMOD where the enhancement AIST0002 will be included.
    Customizing include CI_ANLU has to be created with the custom fields demanded When CI_ANLU will be developed, the custom fields will get appended to the database table ANLU. Also, these fields will be used to create screen fields in the new subscreen.
    A custom subscreen, say, 9000 will be developed under function group XAIS. The screen group for the screen will be ‘CUST’ (or any name). The three custom fields added to table ANLU (by creating CI_ANLU) will be used to create new fields in the screen.
    In the PAI of the subscreen, validation for Location to start with ‘L’ will be added. The subscreen with three new fields has to be developed so that it can be attached to a subscreen area of the asset master screens.
    In the custom include of the function exit module ‘EXIT_SAPLAIST_002’, the following code will be written:-
    ANLU = I_ANLU. I_ANLU is the import parameter of this FM. The value is assigned to the global variable ANLU, referring which the three new subscreen fields are developed. So, data retrieved from database table ANLU will be passed to this FM as I_ANLU by the standard SAP main program. The value will be taken and passed to the global variable of the function group XAIS, so that the three custom fields (referring to ANLU of XAIS) get populated.
    In the custom include of the function exit module ‘EXIT_SAPLAIST_003’, the following code will be written:-
    E_ANLU = ANLU. The changed values in the subscreen fields exist in global variable ANLU for the function group XAIS. This function exit module will pass the data back to the SAP main program as E_ANLU.
    Proper linkage/configuration has to be done so that the new subscreens get linked to the appropriate subscreen area of the Asset master screen. This has to be done – otherwise, the new custom subscreen will not be displayed in the Asset master screens.
    Development
    Creating a Project to include the enhancement
    Go to transaction CMOD and create a project.
    Enter a description for the project. Then, click on the pushbutton ‘Enhancement Assignments’ in the Application Toolbar.
    Enter the name of the enhancement and Save.
    Go to ‘Components’.
    Creating Custom Include for ANLU
    The screen shown below will appear, showing all the enhancement components under the assignment AIST0002. Double-click on the name of the Include Structure to create it.
    Create the include structure with three new fields, as required. Then, save and activate it.
    Develop the subscreen and the program
    Go to transaction SE80. For the function group XAIS, create a new subscreen 9000.
    Create it as subscreen.
    Then, go to the Layout of the screen and create three new fields from Database table ANLU.
    Drag the fields in the screen body and place them.
    Then, save and activate the screen and come back to screen flow editor.
    Create the PAI module to add validation for field “Location 2”, as required .
    Activate the whole function group and come out.
    Write code in the Function Exits to synchronize the programs
    Now, code has to be written in the function modules EXIT_SAPLAIST_002 and EXIT_SAPLAIST_003 so that data flows to and fro between the main SAP program and custom subscreen program. For that, go back to transaction CMOD and change the function exits.
    Write code in the function module EXIT_SAPLAIST_002 called once at the beginning of the transaction:
    Write code in EXIT_SAPLAIST_003 to pass the data from the subscreen to SAP main program.
    Then, activate everything – the whole project and come out.
    Complete the configuration to link the subscreen
    The development portion is complete. Now, linking of the subscreen has to be done with the subscreen area of the main program. In most of the cases, this linking can be done in the enhancement itself. But, here, requirement is a bit different. It is done by configuration using SPRO.
    Assets are created under Asset class. And for each asset class, there is a layout assigned to it. For a layout, there are multiple tab pages assigned to it. And, for each tab page, there are multiple screen groups/field groups assigned.
    Here, the requirement is to create these three custom fields in the tab page ‘General’ of asset master screen ( AS01/AS02/AS03/AS91).
    Determine the Layout
    To achieve this, first of all, we need to find out which layout is assigned to asset class 1000.For that, go to transaction AOLK( information has to be obtained from functional consultant).Select the Asset Class ‘1000’ and click on folder ‘General Assignment of Layout’.
    Here, for Asset class 1000, for all the user groups, tab layout SAP is assigned. Since layout ‘SAP’ cannot be changed, it has to be copied and manipulated to include our screen group. Later, the new layout has to be assigned over here.
    Create new tab layout
    Go to transaction AOLA. Copy the tab layout ‘SAP’ to create another layout, say, YSUB.
    System will copy all the settings and will inform you about that.
    Select your newly created layout and double-click on the folder ‘Tab page titles’.
    You want to put your custom fields in the tab page “General”. So, select this tab page entry and double-click on the folder "Position of Groups".
    Here, all the field groups currently residing in the tab-page “General” are shown. Add an entry for your newly created fields.
    Select the group box from the list. An entry will come with “U” padded with the custom subscreen prepared by you.
    Then, save and come out.
    Assign the new Layout to Asset Class
    Now, go to tcode AOLK and assign tab layout YSUB for asset class 1000.
    Save and come out.
    Test the Exit
    Everything is over. Now, go to transaction code AS01/02/03 or AS91 to deal with an asset of asset class 1000. You will see your new fields added to the screen. Add values to them…save. Then, enter into the tcodes again to see whether the values entered by you are being displayed or not.
    Original Source: ittoolbox.com
    MENU
    refer
    MEnu Exit
    just refer to the link below for step by step procedure with screen shots
    http://www.sapmaterial.com/?gclid=CN322K28t4sCFQ-WbgodSGbK2g
    Check this link:
    http://help.sap.com/saphelp_nw04/helpdata/en/c8/1975e643b111d1896f0000e8322d00/frameset.htm
    Menu exits allow you to add your own functions to the pulldown menus in standard R/3 transactions. To take advantage of a menu exit, you first need to create a project as described in the section Creating an add-on project. Then, you must include the SAP enhancement package that contains the menu exit you want to use in your project. From the main screen of the Project management transaction, proceed as follows:
    Select Enhancement components and choose Change.
    The system lists all customer exits contained in the enhancements included in your project.
    Place the cursor on the menu exit you want to add your own function to.
    Choose Edit component.
    The system displays technical information about the menu entry. It also displays two input fields where you can specify a language and the text you want your menu item to have.
    Enter the name of your menu function (such as Special order method) in the field New text.
    Choose Save text.
    Your special menu function will not appear in the pulldown menu of the corresponding standard transaction until you activate your enhancement project.
    Specifying a menu text and activating your project are not the only steps you need to take to make your own menu item work. After you carry out these steps, your menu item will appear, but it will not call a corresponding function. To attach your menu entry to its corresponding function, you need to create a function module for the function module exit associated with your menu text. This function module exit is part of the same SAP enhancement that contains the menu exit you used. Creating Customer-Specific Function Modules tells you more about how to use function module exits.
    User exits (Function module exits) are exits developed by SAP. The exit is implementerd as a call to a function module. The code for the function module is written by the developer. You are not writing the code directly in the function module, but in the include that is implemented in the function module.
    The naming standard of function modules for functionmodule exits is:
    EXIT_<program name><3 digit suffix>
    The call to a functionmodule exit is implemented as:
    CALL CUSTOMER.-FUNCTION <3 digit suffix>
    To find a Exit.
    Goto Transaction -- Find The Package
    SMOD >f4>Use the Package here to Find the Exits In the Package.
    Else if you Want to search by Application Area wise ,
    There is one more tab to find the Exits in the Respective Application Area.
    Implementing the Exit-- CMOD Create ProjectsAssgn your Component .
    Now Run ur Transaction to Check if it Triggers.
    Thats it..
    Suppose you need to find out all the user exits related to a tcode.
    1. Execute the Tcode.
    2. Open the SAP program.
    3. Get the Development Class.
    4. Execute Tcode SE84.
    5. Open the Node 'Envir. -> Exit Techniques -> 'Customer Exits -> Enhancements'
    6. Enter the Development class and execute.
    Check out this thread..
    The specified item was not found.
    1. Type the transaction : system->status-> <PROG. NAME>
    2 open SE37 , type EXIT<PROG NAME> and press F4 to get the list of function exits available.
    3. Open CMOD utilities->SAP enhancements
    EDIT->All selections
    4.type the function module name obtained in step 2, in fields 'component name' in 'additional selections' block. and execute.
    5. The displayed list contains the enhancements names for the transaction You were looking for.
    6. Create a project in CMOD and the code in default include->activate.
    http://www.erpgenie.com/sap/abap/code/abap26.htm
    which gives the list of exits for a tcode
    http://help.sap.com/saphelp_nw04/helpdata/en/bf/ec079f5db911d295ae0000e82de14a/frameset.htm
    For information on Exits, check these links
    http://www.sap-img.com/abap/a-short-tutorial-on-user-exits.htm
    http://www.sapgenie.com/abap/code/abap26.htm
    http://www.sap-img.com/abap/what-is-user-exits.htm
    http://wiki.ittoolbox.com/index.php/HOWTO:Implement_a_screen_exit_to_a_standard_SAP_transaction
    http://www.easymarketplace.de/userexit.php
    http://www.sap-img.com/abap/a-short-tutorial-on-user-exits.htm
    http://www.sappoint.com/abap/userexit.pdfUser-Exit
    http://www.planetsap.com/userexit_main_page.htm
    User-Exits
    http://www.sap-img.com/abap/a-short-tutorial-on-user-exits.htm
    http://www.sap-img.com/ab038.htm
    http://www.planetsap.com/userexit_main_page.htm
    http://www.sap-basis-abap.com/sapab013.htm
    http://sap.ittoolbox.com/documents/popular-q-and-a/user-exits-for-the-transaction-code-migo-3283
    These links will help you to learn more on user exits.
    http://www.sap-img.com/abap/a-short-tutorial-on-user-exits.htm
    http://help.sap.com/saphelp_nw04/helpdata/en/c8/1975cc43b111d1896f0000e8322d00/frameset.htm
    http://www.planetsap.com/userexit_main_page.htm
    http://www.allsaplinks.com/user_exit.html
    www.sap-img.com/abap/what-is-user-exits.htm
    Also please check these threads for more details about user exits.
    Re: Screen exit
    user exit and customer exit
    user exit
    1. Document on UserExits in FI/CO
    http://www.ficoexpertonline.com/downloads/User%20ExitsWPedit.doc
    2. Finding User Exits...
    http://sap.ionelburlacu.ro/abap/sap2/Other_Useful_Tips.html#Finding_User_Exits
    3. List of all User Exits...
    http://www.planetsap.com/userexit_main_page.htm
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